41.

The reaction of ammonia with sulphuric acid.

Identify the acid which matches the following description:
The acid which is prepared by catalytic oxidation of ammonia.

Explain the following :
 dilute nitric acid is generally considered a typical acid but not so in its reaction with metals.

Explain the following: 
Concentrated nitric acid appears yellow when it is left standing in a glass bottle.

Explain the following:
an all-glass apparatus is used in the laboratory preparation of nitric acid.

Identify the acid which matches the following description:

The acid which produces sugar charcoal from sugar.

The acid on mixing with lead nitrate solution produces a white precipitate which is insoluble even on heating.

Give balanced equation for the action of sulphuric acid on each of the following:

1)  Potassium hydrogen carbonate

2)  Sulphur

In the contact process for the manufacture of sulphuric acid give the equation for the conservation of sulphur trioxide to sulphuric acid.

Chooses the most appropriate answer for the following:

 Identify the statement which does not describe the property of alkenes:

A)  They are unsaturated hydrocarbon

B)   They decolourise bromine water.

C)   They can undergo addition as well as substitution reactions.

D)   They undergo combustion with oxygen forming carbon dioxide and water.