Q1. Which one of the following is another name of RDX?
(a) Cyanohydrin
(b) Dextran
(c) Cyclohexane
(d) Cyclonite
Q2. Which one of the following is also called stranger gas?
(a) Argon
(b) Neon
(c) Xenon
(d) Nitrous oxide
Q3. Salts of which of the following elements provide colour to fireworks?
(a) Zinc and sulphur
(b) Potassium and mercury
(c) Strontium and barium
(d) Chromium and nickel
Q4. An aqueous solution of copper sulphate is acidic in nature because the salt undergoes
(a) Dialysis
(b) Electrolysis
(c) Hydrolysis
(d) Photolysis
Q5. 1 volt equals
(a) 1 J
(b) 1 J/C
(c) 1 C/J
(d) None of these
Q6. A positively charged body has
(a) excess of electron
(b) deficiency of electron
(c) no change in number of electron
(d) none of these
Q7. The head mirror used by E.N.T. doctors is
(a) concave
(b) convex
(c) plane
(d) None of these
Q8. Osmosis is defined as-
(a) Diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
(b) Flow of solute from a semipermeable membrane
(c) Flow of water without a membrane
(d) None of the above
Q9. Trunk of tree increases in girth due to cell division in-
(a) Vascular tissue
(b) Meristematic tissue
(c) Cortex
(d) Pith
Q10. Raisins placed in water swell up due to-
(a) Plasmolysis
(b) Adsorption
(c) Diffusion
(d) Endosmosis
Solutions:
S1. Ans.(d)
S2. Ans.(c)
S3. Ans.(c)
S4. Ans.(c)
S5. Ans.(b)
S6. Ans.(b)
S7. Ans.(a)
S8. Ans.(a)
S9. Ans.(b)
S10. Ans.(d)
