Question

the valency of hydrogen is one as per the molecular formula H2O.therefore valency of Fe turns out to be

Answer 1

2 and 3 both ...... Iron having valency 2 is called Ferric and Iron having valency 3 is called Ferrous
Hope ot helped you .....
If it helped you PLEASE MARK MY ANSWER AS THE BRAINLIEST ANSWER

Answer 2

valancy of ferrous will be 3