Question

The oxidation number of phosphorus in Ba (H₂PO₃)₂ is

Options

• + 3

• + 2

• + 1

• – 1

Answer 1

+ 1

Explanation:

Ba (H₂PO₂)₂ + 2 + (+2 + x – 4)₂ = 0

+2 + (x – 2)₂ = 0

+2 + 2x – 4 = 0

x = + 1.