Question

a black coloured solid which on reaction with dilute HCL forms a blue coloured solution​

Answer 1

Explanation:

The metal oxide in black colour is CuO( Cupric oxide). When CuO reacts with dil. HCl it forms CuCl₂ (Cupric chloride) and water which is a blue – green colored solution.

Answer 2

Answer:

The metal oxide in black colour is CuO( Cupric oxide). When CuO reacts with dil. HCl it forms CuCl₂ (Cupric chloride) and water which is a blue – green colored solution.

Explanation:

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