Question

Give valency of copper and iron.

Answer 1

Answer:

copper 1 is +1,copper 2 is +2///iron=+2

Answer 2

Answer:

Valency of copper (I) is 1

Copper (II) is 2

Copper (III) is 3 and same as with iron

Iron (I) is 1

Iron (II) is 2

Iron (III) is 3....

Hope it helps....