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Nitrogen And Oxygen - 1
1.
Nitrogen is a member of group VA in the periodic table.
a) True
b) False
2.
Pure Nitrogen is slightly heavier than air.
a) True
b) False
3.
Nitrogen is chemically inert at higher temperature.
a) True
b) False
4.
Haber process is used in the preparation of nitric acid.
a) False
b) True
5.
Sodium and potassium react with oxygen vigorously at ordinary temperature.
a) False
b) True
6.
In peroxides the valence number of oxygen is -1.
a) True
b) False
7.
Hydrogen peroxide is stable at room temperature.
a) False
b) True
8.
Gain of electron by an atom or ion is called reduction.
a) True
b) False
9.
Ozone is a faintly blue gas.
a) True
b) False
10.
The atmosphere around us is divided into five layers.
a) True
b) False
11.
The layer of atmosphere in which we live is called stratosphere.
a) True
b) False
12.
Dry air contains about 21% of oxygen by volume.
a) False
b) True
13.
Nitric acid oxidizes sulphur dioxide to give sulphur tri-oxide.
a) False
b) True
14.
Removal of hydrogen from a compound is called reduction.
a) True
b) False
15.
On industrial scale nitric acid is obtained by the oxidation of ammonia.
a) True
b) False
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