Question

The oxidation number of Phosphorus in Mg2P2O7 is :

• A.
  • 3
• B.
  • 2
• C.
  • 5
• D. – 3

Answer 1

Answer: (C)

• 5

Answer 2

(3)

2(+2) + 2x + 7 (–2) = 0

$\therefore$ x = +5