Question

Oxidation number of Ca3P2?

Answer 1

Answer:O.S. of phosphorus will be -3.

Explanation:

as we know 1st and 2nd group's O.S. always remain fixed +1 or +2.

so we have to find O.S. of phosphorus.

0= 3(+2) + 2x

-6 = 2x

x = -3

Answer 2

Answer: oxidation for Ca will be +2

•0=3+2+2x

-6=2x

X=-3

•

x=-3

Hence oxidation number will be -3