Convert dil . `H_(2)SO_(4)` to -
(i) Hydrogen
(ii) Carbon dioxide
(iii) Sulphur dioxide
(iv) Hydrogen sulphide
(v) An acid salt
(vi) A normal salt.

Give equations for oxidation with conc . H_(2)SO_(4) giving the oxidised products - (i) Carbon dioxide (ii) Sulphur dioxide (iii) Phosphoric acid (iv) Copper [II] sulphate (v) Iodine (vi) Sulphur respectively.

Sulphur dioxide is obtained by the action of dilute H_2 SO_4 on :

State (i) the formation (ii) the components of - a basic salt State which of following salts is an -acid, normal or basic salt (i) bleaching powder (ii) potassium mercuric iodide (iii) sodium sulphite (iv) sodium hydrogen sulphite (v) sodium silver cyanide (vi) basic lead nitrate (vii) potassium zincate (viii) alum (ix) calcium bicarbonate (x) basic copper chloride (xi) trisodium phosphate.

State how would convert i] sulphur ii ] chlorine iii] sulphur dioxide - to sulphuric acid.

Select acidic gases from the following (i) Ammonia (ii) Sulphur dioxide (iii) Hydrogen chloride (iv) Chlorine (v) Carbon dioxide (vi) Oxygen (vii) Hydrogen . How is the acidic nature verified ?

Select a basic gas from the following (i) Ammonia (ii) Sulphur dioxide (iii) Hydrogen chloride (iv) Chlorine (v) Carbon dioxide (vi) Oxygen (vii) Hydrogen . How is the basic nature verified ?

The acid which contains four hydrogen atoms- (i) Formic (ii) Sulphuric (iii) Nitric (iv) Acetic- acid

The following materials are provided - solutions of cobalt chloride, ammonia, potassium permanganate, lime water, starch-iodide, sodium hydroxide, lead acetate, potassium iodide. Also provided are litmus and filter papers, glowing splinters and glass rods. Using the above how would you distinguish between: a] a neutral, acidic and a basic gas b] oxygen and hydrogen gas. c] carbon dioxide and sulphur dioxide gas d] chlorine and hydrogen chloride gas e) hydrogen sulphide and nitrogen dioxide gas f] ammonia and carbon dioxide gas g] zinc carbonate and potassium nitrate h] hydrated copper sulphate and anhydrous copper sulphate i] ammonium sulphate and sodium sulphate.

Write the molecular formulae of : (a) Sodium sulphide (b) Magnesium oxide (c) Calcium hydroxide (d) Hydrogen chloride (e) Sulphuric acid (f) Iron (II) sulphide (g) Iron (III) sulphite (h) Nitric acid (i) Calcium phosphate (j) Aluminium sulphate (k) Magnesium nitride

What happens when (i)Hydrogen sulphide is bubbled through an aqueous solution of sulphur dioxide. (ii)Hydrogen sulphide is passed through acidified ferric chloride.