Solution A is a strong acid
Solution B is a weak acid
Solution C is a strong alkali

(i) Which solution contains solute molecules in addition to water molecules?

(ii) Which solution will give a gelatinous white precipitate with zinc sulphate solution? The precipitate disappears when an excess of the solution is added.

(iii) Which solution could be glacial acetic acid solution?

(iv) Give example of a soln. of a weak alkali.

Write the equation[s] for the reaction[s] to prepare lead sulphate from lead carbonate.

A: Nitroso Iron [II] sulphate

B: Iron [III] chloride

C: Chromium sulphate

D: Lead [II] chloride

E: Sodium chloride.

Select from A, B, C, D and E —

(i) A compound soluble in hot water but insoluble in cold water.

(ii) A compound which in the aqueous solution state, is neutral in nature.

Select the correct answer from A, B, C and D –

(i) A weak organic acid is:

1. Formic acid
2. Sulphuric acid
3. Nitric acid
4. Hydrochloric acid

(ii) A complex salt is :

1. Zinc sulphate
2. Sodium hydrogen sulphate
3. Iron (II) ammonium sulphate
4. Tetrammine copper (II) sulphate