Question

What is the oxidation number of Carbon in K₂C₂O₄?

Options

• - 2

• + 3

• + 4

• 0

Answer 1

+ 3

Explanation:

K₂C₂O₄ ⇒ (1 × 2) + (x × 2) + (- 2 × 4)

= 2 + 2x - 8

= 2x - 6

∴ x = + 3

∴ The oxidation number of C = + 3