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Chemistry Sample Paper Class 12 2024 with Solutions

The Class 12 Chemistry subject plays an important role in determining the overall percentage of the students. Whether one is applying for engineering exams like JEE Main or medical exams like NEET, the marks of the Chemistry board exam are always taken into account. So, it is of utmost importance to prepare for the Chemistry exam paper with the help of the chemistry sample paper class 12 2024. So, we have provided the chemistry sample paper class 12 2024 below for the convenience of students.

Chemistry Sample Paper Class 12 2024

The CBSE Chemistry Sample Paper Class 12 2024 for the academic year 2023-2024 has been published by the Central Board of Secondary Education (CBSE). The CBSE Class 12 Chemistry Sample Paper 2023-24 PDF can now be downloaded at cbseacademic.nic.in. Along with the Chemistry Sample Paper Class 12 2024, the CBSE also publishes the CBSE Class 12 Chemistry Sample Paper 2023-24 Marking Scheme. Students must go through these provided resources to achieve excellent scores.

Class 12 Chemistry Sample Paper 2024

With the aid of the chemistry question paper 2024 class 12 with solutions, students can get a clear idea of the 12th board test structure, question types, answer choices, difficulty level of the exam, and other features. Here in this article, we have mentioned chemistry sample paper 2024 with solutions questions and their marking scheme, bookmark this article to get help throughout your Chemistry exam preparation for boards.

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Check: CBSE Class 12 Chemistry Previous Year Questions

Chemistry Sample Paper Class 12 2024: Exam Pattern

Chemistry sample paper class 12 2024 follows the same question structure as the real CBSE Class 12 Chemistry Paper 2023-24. The CBSE Class 12 chemistry sample paper 2024 is worth 70 marks. Candidates have three hours to finish the Question paper.

(a) This Chemistry sample paper class 12 2024 contains 33 topics with internal options.
(b) SECTION A in sample paper class 12 2024 chemistry comprises of 16 multiple-choice questions, each worth one point.
(c) SECTION B comprises of five short response questions worth two points each in Class 12 Chemistry Sample Paper 2023-24.
(d) SECTION C comprises seven three-point short response questions.
(e) SECTION D comprises of two case-based questions worth four points each.
(f) SECTION E of Class 12 Chemistry Sample Paper 2023-24 comprises of three long-answer questions worth five points each.
(g) All queries are required in.
(h) The use of log charts and calculators is prohibited.

Sample Paper Chemistry Class 12 2024 with Solutions PDF

The official sample paper chemistry class 12 2024 with solutions PDF is given here: Class 12 Chemistry Sample Paper 2024. Students will be able to increase their marks by 10-15 numbers easily by going through the sample papers and evaluating their responses with the standard answers.

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Sample Paper of Chemistry Class 12 CBSE 2023-24 with solutions PDFs

The Chemistry Sample Paper Class 12 2024 with solutions PDF and grading Scheme are now accessible at cbseacademic.nic.in. Candidates can save Chemistry Sample Paper Class 12 2024 PDF  for class 12th chemistry exam preparation by visiting the official website. However, for the sake of ease, we have included the sample paper class 12 2024 chemistry PDF with the question paper and marking scheme below.

Chemistry Sample Paper Class 12 2024 with solutions
Class 12 Chemistry Sample Paper 2024
Class 12 Chemistry Sample Paper 2023- 24 Marking scheme

Check Out: Class 12 Chemistry Imporatnt Questions 2024

Chemistry Sample Paper Class 12 2024: Section A

Chemistry Sample Paper Class 12 2024: SECTION A (All Questions)

The following are multiple-choice questions with a single correct answer. Each answer is worth 1 mark and This area contains no internal options.

1. Which of the following solutions will have the highest conductivity at 298 K?
(a) 0.01 M HCl solution (b) 0.1 M HCl solution
(c) 0.01 M CH 3COOH solution (d) 0.1 M CH 3COOH solution

2. Chemistry Sample Paper Class 12 2024 with Solutions_5.1

Identify A and B:
(a) A = 1-phenylethanal , B = acetophenone (b) A = Benzophenone B = formaldehyde
(c) A= Benzaldehyde , B = Acetophenone (d) A = Benzophenone , B = Acetophenone

3. The vitamins which can be stored in our body are:
(a) Vitamin A, B, D and E (d) Vitamin A, C, D and K
(c) Vitamin A, B, C and D (d) Vitamin A, D, E and K

4. What is IUPAC name of the ketone A, which undergoes iodo form reaction to give
CH3 CH= C(CH 3)COONa and yellow precipitate of CHI 3 ?
(a) 3-Methylpent-3-en-2one (b) 3-Methylbut-2-en- one
(c) 2, 3-Dimethylethanone (d) 3-Methylpent-4-one

5. Which of the following is not correct?
(a) In haloarenes, the electron pairs on halogen atom are in conjugation with π-electrons of the ring.
(b) The carbon-magnesium bond is covalent and non-polar in nature .
(c) During SN1 reaction, the carbocation formed in the slow step being sp2 hybridised is planar.
(d) Out of CH2= CH-Cl and C6H5CH2Cl, C6H 5CH2Cl is more reactive towards SN
1 reaction

6. Match the properties with the elements of 3d series:
(i) lowest enthalpy of atomisation                                           (p) Sc
(ii) shows maximum number of oxidation states                     (q) Mn
(iii) transition metal that does not form coloured compounds (r) Zn
(s) Ti
(a) (i) (r), (ii) (q), (iii) (p) (b) (i) (r), (ii) (s), (iii) (p)
(c) (i) (p), (ii) (q), (iii) (r) (d) (i) (s), (ii) (r), (iii) (p)

7. Which of the following statement is true?
(a) molecularity of reaction can be zero or a fraction.
(b) molecularity has no meaning for complex reactions.
(c) molecularity of a reaction is an experimental quantity
(d) reactions with the molecularity three are very rare but are fast.

8. In which of the following solvents, the C4H 8NH 3+X– is soluble;
(a) ether (b) acetone (c) water (d) bromine water

9. Which of the following observation is shown by 2 -phenyl ethanol with Lucas Reagent?
(a) Turbidity will be observed within five minutes
(b) No turbidity will be observed
(c) Turbidity will be observed immediately
(d) Turbidity will be observed at room temperature but will disappear after five minutes.

10. If the initial concentration of substance A is 1.5 M and after 120 seconds the concentration of substance A is 0.75 M, the rate constant for the reaction if it follows zero-order kinetics is:

(a) 0.00625 molL-1s-1

(b) 0.00625 s-1

(c) 0.00578 molL-1s-1

(d) 0.00578 s-1

11. Anisole undergoes bromination with bromine in ethanoic acid even in the absence of iron (III)
bromide catalyst
(a) Due to the activation of benzene ring by the methoxy group.
(b) Due to the de-activation of benzene ring by the methoxy group.
(c) Due to the increase in electron density at ortho and para positions
(d) Due to the formation of stable carbocation .
12 . The trend of which property is represented by the following graph?

Chemistry Sample Paper Class 12 2024 with Solutions_6.1

(a) ionization enthalpy (b) atomic radii
(c) enthalpy of atomization (d) melting point

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12. Which of the following is not considered a transition element?
(a) Scandium (b) Silver (c) Vanadium (d) Zinc

13. Given below are two statements labelled as Assertion (A) and Reason (R)
Assertion (A): Alcohols react both as nucleophiles and electrophiles.
Reason (R): The bond between C–O is broken when alcohols react as nucleophiles.
Select the most appropriate answer from the options given below:
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

14. Given below are two statements labelled as Assertion (A) and Reason (R)
Assertion (A): Strong oxidising agents oxidise toluene and its derivatives to benzoic acids.
Reason (R): It is possible to stop the oxidation of toluene at the aldehyde stage with suitable
reagents.
Select the most appropriate answer from the options given below:
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

15. Given below are two statements labelled as Assertion (A) and Reason (R)
Assertion : Enzymes are very specific for a particular reaction and for a particular substrate.
Reason : Enzymes are biocatalysts.
Select the most appropriate answer from the options given below:
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

16. Given below are two statements labelled as Assertion (A) and Reason (R)
Assertion (A): During electrolysis of aqueous copper sulphate solution using copper electrodes
hydrogen gas is released at the cathode.
Reason (R): The electrode potential of Cu2+ /Cu is greater than that of H +/H 2
Select the most appropriate answer from the options given below:
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Chemistry Sample Paper Class 12 2024: Section B

Chemistry Sample Paper Class 12 2024: SECTION B All Questions

The section B questions are very short answer types. This section contains 5 questions and each question carries 2 marks. All 5 questions have an internal choice option.

17.  a) Radioactive decay follows first-order kinetics. The initial amount of two radioactive elements X and Y is 1 gm each. What will be the ratio of X and Y after two days if their half-lives are 12 hours and 16 hours respectively?
b) The hypothetical reaction P + Q R is half order w.r.t ‘P’ and zero order w.r.t ‘Q’. What is the unit of rate constant for this reaction?

18.  A 5% solution of Na2SO4.10H 2O (MW = 3 22) is isotonic with a 2% solution of non- electrolytic, non volatile substance X. Find out the molecular weight of X.

19. (a) Arrange the isomeric dichlorobenzene in the increasing order of their boiling point and melting points.
(b) Explain why the electrophilic substitution reactions in haloarenes occur slowly and require more drastic conditions as compared to those in benzene.

20. (a) Out of p-tolualdehyde and p-nitrobenzaldehyde , which one is more reactive towards nucleophilic addition reactions, why?
(b) Write the structure of the product formed when acetone reacts with 2,4 DNP reagent.
OR
Convert the following:
(a) Benzene to m-nitrobenzaldehyde
(b) Bromobenzene to benzoic acid

21. (a) DNA fingerprinting is used to determine the paternity of an individual. Which property of DNA
helps in the procedure?
(b) What structural change will occur when a native protein is subjected to a change in pH?

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Chemistry Sample Paper Class 12 2024: Section C

Chemistry Sample Paper Class 12 2024: SECTION C All Questions

The section C questions are very short answer types. This section contains 7 questions and each question carries 3 marks. All 7 questions have an internal choice option.

22. (a) Write the formula for the following coordination compound
Bis(ethane-1,2-diamine) dihydroxidochromium(III) chloride

(b) Does ionization isomer for the following compound exist? Justify your answer.
Hg[Co(SCN) 4]

(c) Is the central metal atom in coordination complexes a Lewis acid or a Lewis base? Explain.

23. (a) Can we construct an electrochemical cell with two half-cells composed of ZnSO4 solution and
zinc electrodes? Explain your answer.
(b) Calculate the λ0m for Cl- ion from the data given below:
Λ0m MgCl2 = 258.6 Scm2mol–1 and λ
0m Mg2+ = 106 Scm2mol–1
(c) The cell constant of a conductivity cell is 0.146 cm-1. What is the conductivity of 0.01 M solution
of an electrolyte at 298 K, if the resistance of the cell is 1000 ohm?

24. Write the name of the reaction, structure and IUPAC name of the product formed when:
(a) phenol reacts with CHCl3 in the presence of NaOH followed by hydrolysis.
(b) CH 3CH2CH(CH 3)CH(CH 3)ONa reacts with C2H 5Br

25.  You are given four organic compounds “A”, “B” , “C” and “D”. The compounds “A”, “B” and “C” form an orange- red precipitate with 2,4 DNP reagent. Compounds “A” and “B” reduce Tollen’s reagent while compounds “C” and “D” do not. Both “B” and “C” give a yellow precipitate when heated with iodine in the presence of NaOH. Compound “D” gives brisk effervescence with sodium bicarbonate solution. Identify “A”, “B”, “C” and “D” given the number of carbon atoms in three of these carbon compounds is three while one has two carbon atoms. Give an explanation for your answer.

26. When sucrose is hydrolysed the optical rotation values are measured using a polarimeter and are
given in the following table:

Chemistry Sample Paper Class 12 2024 with Solutions_8.1

(a) Account for the two specific rotation values.
(b) What is the specific name given to sucrose based on the above observation .
(c) One of the products formed during the hydrolysis of sucrose is a glucose, that reacts with hydroxylamine to give compound A. Identify compound A.

27.  An organic compound A with the molecular formula (+)C 4H9Br undergoes hydrolysis to form (+ ) C4H9OH. Give the structure of A and write the mechanism of the reaction.

28. The rate constants of a reaction at 200K and 500K are 0.02s–1 and 0.20s–1 respectively. Calculate the
value of Ea (Given 2.303R = 19.15 JK -1mol-1)

Chemistry Sample Paper Class 12 2024: Section D

Chemistry Sample Paper Class 12 2024: SECTION D All Questions
The queries in Section D are case-based. Each answer has an internal option and is worth 4 (1+1+2) points. Read the text attentively and respond to the following questions.

29. Crystal field splitting by various ligands
Metal complexes show different colours due to d-d transitions. The complex absorbs light of specific wavelength to promote the electron from t2g to eg level. The colour of the complex is due to the transmitted light, which is complementary of the colour absorbed.
The wave number of light absorbed by different complexes of Cr ion is given below:

Chemistry Sample Paper Class 12 2024 with Solutions_9.1

Answer the following questions:
(a) Out of the ligands “A”, “B”, “C” and “D”, which ligand causes maximum crystal field splitting?
Why?
OR
Which of the two, “A” or “D” will be a weak field ligand? Why?
(b) Which of the complexes will be violet in colour? [CrA 6]3- or [CrB6]3+ and why? (Given: If 560 – 570 nm of light is absorbed, the colour of the complex observed is violet.)
(c) If the ligands attached to Cr3+ ion in the complexes given in the table above are water, cyanide ion, chloride ion, and ammonia (not in this order)
Identify the ligand, write the formula and IUPAC name of the following:
(i) [CrA6]3- (ii) [CrC6]3+

30. The lead-acid battery represents the oldest rechargeable battery technology. Lead acid batteries can be found in a wide variety of applications including small-scale power storage such as UPS systems, ignition power sources for automobiles, along with large, grid-scale power systems. The spongy lead act as the anode and lead dioxide as the cathode. Aqueous sulphuric acid is used as an electrolyte. The half-reactions during discharging of lead storage cells are:
Chemistry Sample Paper Class 12 2024 with Solutions_10.1
There is no safe way of disposal and these batteries end – up in landfills. Lead and sulphuric acid are extremely hazardous and pollute soil, water as well as air. Irrespective of the environmental challenges it poses, lead-acid batteries have remained an important source of energy.
Designing green and sustainable battery systems as alternatives to conventional means remains relevant. Fuel cells are seen as the future source of energy. Hydrogen is considered a green fuel. Problem with fuel cells at present is the storage of hydrogen. Currently, ammonia and methanol are being used as a source of hydrogen for the fuel cell. These are obtained industrially, so add to the environmental issues.
If the problem of storage of hydrogen is overcome, is it still a “green fuel?” Despite being the most abundant element in the Universe, hydrogen does not exist on its own so needs to be extracted from the water using electrolysis or separated from carbon fossil fuels. Both of these processes require a significant amount of energy which is currently more than that gained from the hydrogen itself. In addition, this extraction typically requires the use of fossil fuels. More research is being conducted in this field to solve these problems. Despite the problem of no good means to extract Hydrogen, it is a uniquely abundant and renewable source of energy, perfect for our future zero-carbon needs.
Answer the following questions:
(a) How many coulombs have been transferred from anode to cathode in order to consume one mole of sulphuric acid during the discharging of lead storage cell?
(b) How much work can be extracted by using lead storage cell if each cell delivers about 2.0 V of voltage? (1 F = 96500 C)
(c) Do you agree with the statement – “Hydrogen is a green fuel.” Give your comments for and against this statement and justify your views.
OR
Imagine you are a member of an agency funding scientific research. Which of the following projects will you fund and why?
(i) safe recycling of lead batteries
(ii) extraction of hydrogen

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Chemistry Sample Paper Class 12 2024: Section E

SECTION E

The following queries are of the long answer variety and are worth 5 marks each. Every question has an internal option.


31. Attempt any five of the following:
(a) Which of the following ions will have a magnetic moment value of 1.73 BM.
Sc3+, Ti3+, Ti2+, Cu2+, Zn2+
(b) In order to protect iron from corrosion, which one will you prefer as a sacrificial electrode, Ni or Zn? Why? (Given standard electrode potentials of Ni, Fe and Zn are -0.25 V, -0.44 V and -0.76 V
respectively.)
(c) The second ionization enthalpies of chromium and manganese are 1592 and 1509 kJ/mol respectively. Explain the lower value of Mn.
(d) Give two similarities in the properties of Sc and Zn.
(e) What is actinoid contraction? What causes actinoid contraction?
(f) What is the oxidation state of chromium in chromate ion and dichromate ion?
(g) Write the ionic equation for reaction of KI with acidified KMnO 4.

32. (a) What is the effect of temperature on the solubility of glucose in water?
(b) Ibrahim collected a 10mL each of fresh water and ocean water. He observed that one sample labelled “P” froze at 0º C while the other “Q” at -1.3oC. Ibrahim forgot which of the two, “P” or “Q” was ocean water. Help him identify which container contains ocean water, giving rationalization for your answer.
(c) Calculate Van’t Hoff factor for an aqueous solution of K3 [Fe(CN)6] if the degree of dissociation
(α) is 0.852. What will be the boiling point of this solution if its concentration is 1 molal? (Kb=0.52 K
kg/mol)
OR
(a) What type of deviation from Roult’s Law is expected when phenol and aniline are mixed with each other? What change in the net volume of the mixture is expected? Graphically represent the deviation.
(b) The vapour pressure of pure water at a certain temperature is 23.80 mm Hg. If 1 mole of a nonvolatile non electrolytic solute is dissolved in 100g water, Calculate the resultant vapour pressure of the solution.

33.  An organic compound with molecular formula C7H7NO2 exists in three isomeric forms, the isomer ‘A’ has the highest melting point of the three. ‘A’ on reduction gives compound ‘B’ with molecular formula C7H9N. ‘B’ on treatment with NaNO2/HCl at 0-5 0C to form compound ‘C’. On treating C with H3PO2 ,it gets converted to D with formula C7H8 , which on further reaction with CrO2Cl2 followed by hydrolysis forms ‘E’ C7H6O . Write the structure of compounds A to E . Write the chemical equations involved.
OR

(a) Account for the following:
(i) N-ethylbenzenesulphonyl amide is soluble in alkali .
(ii) Reduction of nitrobenzene using Fe and HCl is preferred over Sn and HCl.
(b) Arrange the following:
(i) decreasing order of pKb values
C6H5NH2, C6H5NHCH3, C6H5CH2NH2, CH3NH2, NH3
(ii) increasing order of solubility in water
C2H5Cl, C2H5NH2, C2H5OH
(iii) decreasing boiling point
CH3COOH, C2H5OH, CH3NH2, CH3OCH3

Chemistry Question Paper 2024: Additional Practice Paper

CBSE Class 12 Chemistry Additional Practice Questions 2023-24 is an absolute necessity resource for board exam prep. The CBSE Class 12 Chemistry Additional Practice Questions Paper 2023-24 is intended to provide students with an idea of the types of questions that will likely be asked on the actual test, and it is a great way for students to practice and prepare for the exam check the CBSE Class 12 Additional Practice Questions Paper 2023-24 Chemistry PDF, as well as the marking scheme and Solutions.

Class 12 Chemistry Sample Paper 2024 with Solution: Additional Paper

Section – A

The following are multiple-choice questions with only one correct answer. Each question is worth 1 Mark. This section contains no internal options.

1. Sunita set up three cells as shown below:

Chemistry Sample Paper Class 12 2024 with Solutions_12.1
She applied external potential in all three cells. The potential is increased slowly, till the opposing voltage reaches the value of 1.1 V. 

Which of the following statements is INCORRECT?
(a) Electrons flow from Zn rod to Cu rod hence current flows from Cu to Zn in case (P).
(b) The chemical reaction takes place in case (Q) till the opposing voltage reaches 1.1 V.
(c) Zinc is deposited at the zinc electrode and copper dissolves at copper electrode in case (P).
(d) Electrons flow from Cu to Zn and current flows from Zn to Cu in case (R).

Answer: (c) Zinc is deposited at the zinc electrode and copper dissolves at the copper electrode in case (P).

2.  Two compounds M and N have the general formula CnH2nO but different structural formulae.
i) Compound N belongs to that homologous series where the first member contains 3 carbon atoms.
ii) Compound M reacts with one equivalent of monohydric alcohol in the presence of dry hydrogen chloride to yield a hemiacetal.
Identify the homologous series to which compounds M and N belong to?
(a) Both the compounds are aldehydes.
(b) Compound M is an aldehyde and compound N is a ketone.
(c) Both the compounds are ketones.
(d) Compound N is an aldehyde and compound M is a ketone.

Answer:(b) Compound M is an aldehyde and compound N is a ketone. 

3. During a quiz competition, team A and team B have to answer a tie question on the characteristics of RNA.
Their responses are as follows:

Chemistry Sample Paper Class 12 2024 with Solutions_13.1

What is the expected result of the quiz and why?
(a) Team A wins the quiz as both the responses are correct.
(b) Team B wins the quiz as both the responses are correct.
(c) Team A loses the quiz as Adrika’s response is incorrect.
(d) Team B loses the quiz as Rounak’s response is incorrect

Answer:(a) Team A wins the quiz as both the responses are correct.

4. What will be the change in the hybridization of C when a nucleophile attacks the electrophilic centre of the carbonyl group?
(a) sp2 to sp
(b) sp3 to sp2
(c) sp3 to sp
(d) sp2 to sp3

Answer:(d) sp2 to sp3

5.  Four compounds, CH3Cl, CH3Br, C2H5Br and C3H7I are represented by the letters M, N, O and P in the table below (in random order). The boiling points are also given on the table.

Chemistry Sample Paper Class 12 2024 with Solutions_14.1

Which of the four compounds does ‘N’ most likely represent?
(a) CH3Cl
(b) CH3Br
(c) C2H5Br
(d) C3H7I

Answer:(c) C2H5Br

6. Study the graph given below.

Chemistry Sample Paper Class 12 2024 with Solutions_15.1

Based on the graph given, which element will MOST LIKELY be involved in the following reaction?
Metal + conc. sulphuric acid Metal sulphate + sulphur dioxide + water
(a) Cu
(b) Co
(c) Ti
(d) Zn

Answer:(a) Cu

7. The table given below shows the results of three experiments on the rate of the reaction between compounds P and Q at a constant temperature.

Chemistry Sample Paper Class 12 2024 with Solutions_16.1

Based on the data, what will be the rate equation for the reaction between P and Q?
(a) k[P]2[Q]
(b) k[P][Q]2
(c) k[P][Q]
(d) k[P]

Answer:(a) k[P]2[Q]

8. The table below shows the KH values for some gasses at 293 K and at the same pressure.

Chemistry Sample Paper Class 12 2024 with Solutions_17.1

In which of the following are the gases arranged in their decreasing order of solubility (from left to right)?
(a) Helium > Nitrogen > Hydrogen > Oxygen
(b) Hydrogen > Helium > Nitrogen > Oxygen
(c) Nitrogen > Hydrogen > Oxygen > Helium
(d) Oxygen > Hydrogen > Nitrogen > Helium

Answer:(d) Oxygen > Hydrogen > Nitrogen > Helium

9. Sampriti took 4 acids. Help her to arrange the acids from left to right, in the increasing order of their acidity:
2, 4, 6 – Trinitrophenol, acetic acid, phenol, and benzoic acid.

(a) 2, 4, 6 – Trinitrophenol, acetic acid, benzoic acid, phenol
(b) phenol, acetic acid, benzoic acid, 2, 4, 6 – Trinitrophenol
(c) 2, 4, 6 – Trinitrophenol, benzoic acid, acetic acid, phenol
(d) phenol, benzoic acid, acetic acid, 2, 4, 6 – Trinitrophenol

Answer:(b) phenol, acetic acid, benzoic acid, 2, 4, 6 – Trinitrophenol

10. An archeologist found that the percentage of carbon-14 in a wooden artifact was 20% of what carbon-14 would have been in the wood when it was cut from the tree. What would be the approximate age of this wooden artifact?
(Given the half-life of carbon-14= 5730 years)
(a) 5,790 years
(b) 12,060 years
(c) 13,300 years
(d) 38,000 years

Answer:(c) 13,300 years

11. Sourima was having a severe headache. She took medicine to relieve her pain. The medicine is industrially prepared by:
(a) mononitration of phenyl methanoate
(b) acetylation of salicylic acid in the presence of an acid
(c) hydrogenation of anisole with Br2 in ethanoic acid
(d) nitration of anisole with a mixture of concentrated sulphuric and nitric acids

Answer:(b) acetylation of salicylic acid in presence of an acid

12.  Which of the following options give the correct arrangement of the atomic radii of the 3d, 4d, and 5d transition series of elements?
(a) atomic radii of 3d < atomic radii of 4d < atomic radii of 5d
(b) atomic radii of 3d < atomic radii of 4d ≈ atomic radii of 5d
(c) atomic radii of 3d ≈ atomic radii of 4d > atomic radii of 5d
(d) atomic radii of 3d > atomic radii of 4d > atomic radii of 5d

Answer:(b) atomic radii of 3d< atomic radii of 4d ≈ atomic radii of 5d

13. Two statements are given below – one labeled Assertion (A) and the other labeled
Reason (R).
Assertion (A): 2-Methoxy-2-methyl propane reacts with hydrogen iodide to form methyl alcohol and 2-Iodo-2-methylpropane.
Reason (R): The reaction given in (A) follows SN2 mechanism. Which of the following is correct?
(a) Both A and R are true, and R is a correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.

Answer:(c) A is true, but R is false. 

14. Two statements are given below – one labeled Assertion (A) and the other labeled Reason (R).
Assertion (A): In acetaldehyde, the carbonyl carbon acts as a Lewis acid and the carbonyl oxygen acts as a Lewis base.
Reason (R): Carbonyl compounds have substantial dipole moments.
Which of the following is correct?
(a) Both A and R are true, and R is a correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.

Answer:(a) Both A and R are true, and R is a correct explanation of A.

15. Two statements are given below – one labeled Assertion (A) and the other labelled Reason (R).
Assertion (A): Denaturation of protein does not change the primary structure of proteins.
Reason (R): The bonding between the carbon and hydrogen atoms during denaturation of proteins remains intact.
Which of the following is correct?
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.

Answer:(b) Both (A) and (R) true but (R) is not the correct explanation of (A).

16. Two statements are given below – one labeled Assertion (A) and the other labelled Reason (R).
Assertion (A): Copper does not form copper (II) sulphate on reaction with dil. sulphuric acid.
Reason (R): The standard potential for Cu+2|Cu electrode is negative.
Which of the following is correct?
(a) Both A and R are true, and R is a correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.

Answer: (c) A is true, but R is false

Chemistry Sample Paper Class 12 2024 with Solutions_18.1

Chemistry Question Paper 2024 -Section B

Section – B

This section has 5 questions, one of which has an internal choice. The following questions have very short response types and are worth 2 points apiece.

17. Given below is a graph of the concentration of reactant vs. time for a reaction.

Chemistry Sample Paper Class 12 2024 with Solutions_19.1
(a) Based on the graph above draw a rate of reaction vs concentration of reactant graph for the same reaction.
(b) What will be the order of this reaction? Justify.


18. ‘Colligative properties help in determining the molar masses of the solutes.’
The method based on which colligative property is preferred over others for determining molar masses of biomolecules and why?
19. In which of the two compounds CH3CH2CH2Cl or C6H5Cl will the C-Cl bond be longer? Why?
20. Correctly match the items in the ‘Reactants’ column with those in the ‘Product’ column

Chemistry Sample Paper Class 12 2024 with Solutions_20.1

OR
Aqueous hydrogen cyanide is allowed to react separately with propanone and ethanal.
In which case will the rate of reaction be faster and why?

21. Glucose does not give a positive result with the Schiff’s reagent in the Schiff’s test. Based on the above information –
(a) Give a reason for the observation.
(b) What type of carbonyl group is present in a glucose molecule?

Class 12 Chemistry Additional Practice Paper 2023-24 CBSE PDF Download

The CBSE Class 12 Chemistry Additional Practice Questions 2023-24 are an extremely helpful source for students studying for the Class 12 Chemistry board exam. Candidates can access the CBSE Class 12 Chemistry Practice Paper 2023 -24 PDF with the solution and marking system using the direct links provided below.

CBSE Practice Paper Class 12 2023 -24 Chemistry PDF with Solution Links
 CBSE Class 12 Chemistry Additional Practice Question Paper 2023 -24 PDF
CBSE Class 12 Chemistry Additional Practice Question & Solution

CUET Science PCM

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FAQs

Where can I download a copy of the CBSE Class 12 Chemistry Sample Paper 2023-24?

The Central Board of Secondary Education has published Class 12 Chemistry Sample Paper 2023-24 on its website, cbseacademic.nic.in. We have provided the Class 12 Chemistry Sample Paper 2023-24 download link in this post.

How many total marks are there in the Class 12 Chemistry Sample Paper 2023-24?

Class 12 Chemistry Sample Paper 2023-24 has a total of 70 points.

What is the number of divisions in the Class 12 Chemistry Sample Paper 2023-24?

The Class 12 Chemistry Sample Paper 2023-24 is divided into five parts (A through E).

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