Question

Valency of Cu in Cu(OH)2.



A question challenged by me to real life genius

Answer 1

Question :

What is Valency of Cu in Cu(OH)₂ ?

To Find :

Valency of Cu

Answer : +2

Explanation :

                                                                                 

We know valency of O is -2 and H is 1

Let Cu be "x"

x + (-2 + 1 )₂ = 0

x + (-4) + (2) = 0

x - 4 + 2 = 0

x - 2 = 0

x = 0 + 2

x = 2

Hence valency of Cu in Cu(OH)₂ is +2

                                                                                 

Regards :)

Answer 2

Copper is one of the transition elements and thus exhibits variable oxidation states. It has two valencies: +1 and +2 and the corresponding atoms are termed as Cuperous (+1 valency) and Cupric (+2 valency). These are also denoted as Cu(I) and Cu(II).