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Science (Chemistry) Quiz For CTET Exam

Science (Chemistry) Quiz For CTET Exam_30.1
Q1. The mass of the atom is determined by________.
(a) neutrons
(b) neutron and proton
(c) electron
(d) electron and neutron

Q2. Which of the following alloy is used for making magnets for hearing aids—?
(a) Invar
(b) German silver
(c) Monel metal
(d) Alinco

Q3. Emery consists of impure—
(a) Iron
(b) Corundum
(c) Carbon
(d) Graphite

Q4. Electron was discovered by___________.
(a) Chadwick
(b) Thomson
(c) Goldstein
(d) Bohr

Q5. The element which exhibit maximum catenation property
(a) C
(b) Si
(c) Ge
(d) Pb

Q6. Graphite is used in atomic piles—
(a) As a lubricant
(b) As a fuel
(c) As an insulator
(d) As a moderator

Q7. Chadwick got the Nobel Prize for the discovery of __________.
(a) protons
(b) neutrons
(c) electrons
(d) mesons

Q8. Almost the entire mass of an atom is concentrated in the__________.
(a) proton
(b) electrons
(c) nucleus
(d) neutrons

Q9. Synthetic gas is a mixture of—
(a) Steam and carbon monoxide
(b) Carbon monoxide and nitrogen
(c) Hydrogen and methane
(d) Hydrogen and carbon monoxide

Q10. Activated charcoal is employed to remove colouring matter from pure substance, it works by—
(a) Bleaching
(b) Oxidation
(c) Reduction
(d) Adsorption
Solutions
S1. Ans.(b)
S2. Ans.(d)
S3. Ans.(b)
S4. Ans.(b)
S5. Ans.(a)
S6. Ans.(d)
S7. Ans.(b)
S8. Ans.(c)
S9. Ans.(d)
S10. Ans.(d)