Question

7. Name
(a) a black metallic oxide which reacts with hydrochlorie
acid to give a coloured solution​

Answer 1

Copper oxide is the black metallic oxide which reacts with HCl to give a coloured solution of copper chloride..

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Answer 2

$\huge\underline\mathfrak\blue{ANSWER}$

COPPER OXIDE

Copper oxide is a black metallic oxide which reacts with HCL to give a give a coloured solution of copper chloride.

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