31.

State your observation for the following case:

Ammonia gas is burnt in an atmosphere of oxygen in the absence of a catalyst.

Write the equation for each of the following reaction:

Ammonium chloride is heated with sodium hydroxide.

The question below is related to the manufacturer of ammonia.

I) name the process

II) in what ration must the reactant be taken?

III) name the catalyst used.

IV) given the equation for the manufacture of ammonia.

V ) Ammonia can act as a reducing agent- write a  relevant equation for such a reaction.

Q.7(c ) the action of heat on the blue crystalline solid L give a reddish brown gas M, a gas which relights a glowing  splint and leaves a black residue. When gas N, which has a rotten egg smell, is passed through a solution of L a black precipitate is formed.

(i) identify L, M and N(name or formula)

(ii) write the equation for the action of heat on L.

(iii)  write the equation for the reaction between the solution of L and the gas N.

Write the equation for  each of the following reaction:

Sulphur is heated with concentrated sulphuric acid.

Write the equation for  each of the following reaction:
Concentrated sulphuric acid is poured over sugar.

Give the equations for the following conversion A to E. 

Solution A is a sodium hydroxide solution. Solution B is a weak acid solution C is dilute sulphuric acid which solution will:

i) liberate sulphur dioxide from sodium sulphite

ii)give a white precipitate with zinc sulphate solution.

iii)contain solute molecules and ions?

By the addition of only one solution, how would you distinguish between dilute hydrochloric acid and dilute nitric acid?

Given the equation for the preparation of each of the following salts from the starting material given:

Copper sulphate from copper (II )oxide