SSC CGL 2015 : Chemistry Quiz

1. The oxide of Nitrogen used in medicine as anaesthetic is ?

A.Nitrogen pentoxide

B.Nitrous oxide

C.Nitric oxide

D.Nitrogen dioxide

2. Which one of the following metals does not react with water to produce Hydrogen?

A.Cadmium

B.Lithium

C.Potassium

D.Sodium

3. The most electronegative element among the following is

A.sodium

B.bromine

C.fluorine

D.oxygen

4. Which of the primary component of natural gas?

A.Ethane

B.Propane

C.Methane

D.Butane

5. The metal used to recover copper from a solution of copper sulphate is ?

A.Na

B.Ag

C.Hg

D.Fe

6. Which gas is used in fire extinguishers ?

A.Carbon dioxide

B.Nitrogen oxide

C.Carbon monoxide

D.Sulpher dioxide

7. The metallurgical process in which a metal is obtained in a fused state is called ?

A.roasting

B.calcinations

C.smelting

D.froth floatation

8. Which of the following is produced during the formation of photochemical smog ?

A.Nitrogen Oxides

B.Hydrocarbons

C.Methane

D.Ozone

9. Which of the following gas is used in cigarette lighters ?

A.Butane

B.Propane

C.Methane

D.Ethane

10. Biogas majorly contains ?

A.Ethane

B.Methane

C.Hydrogen

D.CO

ANSWER KEY:
1 - (A)
2 - (A)
3 - (C)
4 - (C)
5 - (D)
6 - (A)
7 - (C)
8 - (D)
9 - (A)
10- (B)