Carbon dioxide reacting with gaseous ammonia

Mercury (II) chloride solution on reaction with gaseous ammonia forms:

The following are the two statements regarding carbon dioxide: (a) Carbon dioxide produced during cellular respiration must be eliminated from the body. (b) Carbon dioxide reacts with water to form carbonic acid and thus increases pH. Of the above statements, which one of the following options is correct

Carbon dioxide is fixed in

Carbon dioxide turns lime water

Carbon dioxide is acidic in nature.

The drying agent which absorbs carbon dioxide and reacts violently with water is

Select the letters A,B,C,D or E , which form the gaseous products of the reactions from 1 to 5. A : nitrogen dioxide only B: Nitric oxide only C : Hydrogen D : Nitrogen dioxide & oxygen E, Nitrogen dioxide & carbon dioxide Reaction of manganese with cold very dil nitric acid .

Select the letters A,B,C,D or E , which form the gaseous products of the reactions from 1 to 5. A : nitrogen dioxide only B: Nitric oxide only C : Hydrogen D : Nitrogen dioxide & oxygen E, Nitrogen dioxide & carbon dioxide Reaction of sulphur with conc . nitric acid.

Carbon dioxide is lighter than air.

Urea is formed in liver cells from (a) Ammonia and nitrogen (b) Ammonia and carbon dioxide (c) Ammonia, carbon dioxide and aspartic acid (d) Ammonia and carbon monoxide