NEET Chemistry The Solid State Questions Solved


A transition Metal Mcan exist in two oxidation states +2 and +3.It forms an oxide whose experimentalformula is given by MxO where x < 1. Then the ratio of metal ions in +3 state to those in +2 state in oxide is given by :

(1) 1x1+x

(2) 1 + 2X

(3) 1 + x2

(4) 2(x1)3x2

(4) In 1 mole of MxO, mole of M2+ ion = y

∴ mole of M3+ ion = x – y.

Applying charge balance, 2y + 3(x – y) – 2 = 0

⇒ y = 3x – 2

M3+M2+=x  yy=x (3x 2)3x 2=2(x 1)3x 2

Difficulty Level:

  • 17%
  • 22%
  • 15%
  • 48%
Crack NEET with Online Course - Free Trial (Offer Valid Till August 28, 2019)