Question

The formula of copper sulphate is CuSO4. What is the valency of copper, if the valency of SO4 is 2?

Answer 1

Answer:

The valency of copper is +2 then only +2 and-2 are cancelled

Answer 2

Dear Student,

◆ Answer -

Valency of copper in CuSO4 is 2.

● Explaination -

As we know, sum of valencies of all entities in a compound is equal to its charge.

Here,

Valency of Cu + Valency of SO4 = 0

Valency of Cu + (-2) = 0

Valency of Cu = -(-2)

Valency of Cu = 2

Therefore, valency of copper is 2.

Thanks dear. Hope that was helpful...