Chemistry test for free

Chemistry test for free
Free Chemistry Online Practice Test
Free Online Chemistry Test Practice and Preparation Test



1. Most of the fuels are
(a) Carbon compounds with sulphur
(b) Nitrogen compounds with carbon
(c) Carbon compounds with hydrogen
(d) None of these
Ans. (c)

2. When steam is passed over hot coke, it produces
(a) Producer gas
(b) Synthesis gas
(c) Tear gas
(d) Coal gas
Ans. (b)

3. Producer gas is a mixture of
(a) Carbon monoxide and nitrogen gas
(b) Carbon monoxide and hydrogen gas
(c) Carbon monoxide and w4r vapor
(d) Carbon monoxide and nitrous oxide
Ans. (a)



4. The property of an atom to form a bond with itself is known as
(a) Isomerism
(b) Catenation
(c) Allotropy
(d) None of these
Ans. (b)

5. A hydrocarbon is
(a) a compound containing carbon, hydrogen and oxygen
(b) is sodium hydrogen carbonate
(c) Compound containing carbon and hydrogen only’
(d) a derivative of benzene
Ans. (c)


6. The formula of tetrachloro methane is
(a) CC1H3
(b) CCl2
(c) CHC13
(d) CCI4
Ans. (d)

7. Which of the following gas is known as illuminating gas?
(a) Ethane
(b) Ethene
(c) Ethyne
(d) Propane
Ans. (c)


8. Which of the following does not give a positive test with alkaline solution of potassium permanganate?
(a) GWH
(b) C6H12
(c) C10H18
(d) C10H20
Ans. (a)

9. The residue left in destructive distillation of coal is
(a) Charcoal
(b) Coke
(c) Coaltar
(d) Coal gas
Ans. (b)


10. The fraction of petroleum used as jet fuel is
(a) Petrol
(b) Kerosene
(c) Diesel
(d) Alcohol
Ans. (b)