(b)A compound ' \( A \) ' of Zinc metal on reacting with dilute sulphuric acid produces a gas ' \( B \) ', which turns lead acetate paper black due to formation of compound ' \( C \) '. (i)Identify A, B and C (3) (ii)Give balanced chemical equation for the reaction taking place between compound ' \( A \) ' and dilute sulphuric acid.

Question

(b)A compound ' \( A \) ' of Zinc metal on reacting with dilute sulphuric acid produces a gas ' \( B \) ', which turns lead acetate paper black due to formation of compound ' \( C \) '. (i)Identify A, B and C (3) (ii)Give balanced chemical equation for the reaction taking place between compound ' \( A \) ' and dilute sulphuric acid.

Answer 1

A = ZnS-> Zinc Sulphide

 B = H₂S-> Hydrogen sulphide

  C = PbS -> Lead sulphide

Balanced equations of the reactions occurred 

ZnS (A)+ H₂SO4 -> ZnSO₄ + H₂S (B)

Pb(CH₃COO)₂ + H₂S => PbS (C) + 2CH₃COOH