Chemistry MCQ 001
1. Biogas is obtained during
(A) decomposition of petrol
(B) fermentation of animal and plant waste
(C) destructive distillation of coal
(D) electrolysis of water
2. Which of the following is used in fuel to
propel rockets?
(A) Petrol
(B) Kerosene
(C) Hydrazine
3. Coke is a substance obtained
(A) from coal mines
(B) when wood is burnt in excess of air
(C) by heating coal out of contact with air
(D) by heating wood out to contact with air
4. Smelling salt contains
(A) ammonium chloride
(B) ammonium carbonate
(C) ammonium sulphate
(D) potassium nitrate
5. Which of the following acts both as oxidising
and reducing agent?
(A) nitric acid
(B) ammonia
(C) nitrous acid
(D) nitrogen peroxide
6. Compounds of nitrogen with metals are called
(A) nitrates
(B) nitrites
(C) hyponitrates
(D) nitrides
7. Laughing gas is
(A) nitric oxide
(B) nitrogen peroxide
(C) nitrogen pentoxide
(D) nitrous oxide
8. Heated saw dust catches fire when a drop of
concentrated nitric acid is added to it. This is due to
(A) dehydration
(B) oxidation
(C) reduction
(D) dehydrogenation
9. Nitrous oxide used as anaesthetic is usually
mixed with
(A) ethyl alcohol
(B) chloroform
(C) oxygen
(D) methyl alcohol
10. The earliest name given to nitrogen was
(A) dephlogisticated air
(B) azote
(C) inflammable air
(D) marine
acid air
Answers
1. B
2. C
3. C
4. B
5. C
6. D
7. D
8. B
9. C
10. B
...............
No comments:
Post a Comment