Question

process to find out the valency of copper
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Answer 1

• The Valency of copper like other transition metals is not immediately obvious.
• For example if it is Copper(I)chloride, CuCl, oxidation state is +1 and the solid is green and little soluble in water. ...
• Thus the generally shown valency of copper atom is either +1 or +2.

Answer 2

$\large\underline\bold{ANSWER \red{\huge{\checkmark}}}$

The Valency of copper like other transition metals is not immediately obvious.

For example if it is Copper(I)chloride, CuCl, oxidation state is +1 and the solid is green and little soluble in water.

Thus the generally shown valency of copper atom is either +1 or +2.