What is the oxidation number for carbon in CaC2O4

Answer 1

In CaC2O4 compound, the oxidation state of calcium is +2 and oxygen is -2.

To find the oxidation state of carbon, we use the rule that the oxidation states of all atoms in a compound must add up to zero.

So,

(+2) + 2(x) + (-8) = 0 (where x is the oxidation state of carbon)

Simplifying this equation, we get:

2x - 6 = 0

2x = 6

x = +3

Therefore, the oxidation state of carbon in CaC2O4 is +3.