Question

You are given the following substances:

(i) Barium chloride solution

(ii) Copper sulphate solution

(iii) Copper powder

and (iv) Ferrous sulphate crystals.

Write chemical equations for the reactions taking place when:

a.

Barium chloride solution is mixed with copper sulphate solution and a white

precipitate is observed.

b.

On heating, green ferrous sulphate crystals, reddish brown solid is left and a gas

having smell of burning sulphur is noticed.

c.

On heating copper powder in air, the surface of copper powder becomes black.​

Answer 1

Answer:

(a) BaCl2 + CuSo4 ---------- CuCl2

(b) 2FeSo4 ---------- Fe2O3 + SO2 + SO3

(c) 2Cu + H2O ----------- 2CuO

Explanation:

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