41.

State one observation for each of the following :

Bromine vapours are passed into a solution of ethyne in carbon tetrachloride.

Some word/words are missing in the following  statements. You are required to rewrite the statement in the correct form using the appropriate word/words:

Agua regia contains one party by volume of nitric acid and three parts of volume of hydrochloric acid.

Give reason for the following:

Hydrogen chloride gas cannot be dried over quick lime.

Give balanced equation for the following reaction:

Concentrated hydrochloric acid and potassium permanganate solution.

Give balanced equation for the following reaction:

Silver nitrate solution and sodium chloride solution

Give balanced equation for the following reactions;

Ammonia and oxygen in the presence of a catalyst.

Give reason for the following:

Iron is rendered passive with fuming nitric acid.

 Give balanced equation for the following reaction:

 Zinc sulphide and dilute sulphuric acid.

Some word/words are missing in the following statement. You are required to rewrite the statement in the correct form using the appropriate word/words:

Ethyl alcohol is dehydrated by sulphuric acid at a temperature of about 170⁰C.

Why is pure acetic acid known as a glacial acetic acid?