Solved Sample Paper 5 — Question 18

Question 7(iii)

Choose the role played by different solutions as A, B, C, which is responsible for the observation given in 1 to 3.

A. Solution X is a sodium hydroxide solution.

B. Solution Y is a weak acid.

C. Solution Z is dilute sulphuric acid.

(1) Liberate sulphur dioxide from sodium sulphite?

(2) Give a white precipitate with zinc sulphate solution?

(3) Contain solute molecules and ions?