NEET Chemistry The Solid State Questions Solved


Analysis show that nickel oxide consist of nickel ion with 96% ions having d8 configuration and 4% having d7 configuration. Which amongst the following best represents the formula of the oxide.

(1) Ni1.02O1.00

(2) Ni0.96O1.00

(3) Ni0.96O0.98

(4) Ni0.98O1.00

(4) d8 → Ni2+, d7 → Ni3+.

Total charge of nickel.

(0.96 × 2) + (0.04 × 3) = 2.04.

No. of O2- ion = 2.042=1.02.= 1.02. 

Formula of solid = NiO1.02 = Ni0.98O.

Difficulty Level:

  • 12%
  • 28%
  • 15%
  • 47%
Crack NEET with Online Course - Free Trial (Offer Valid Till September 21, 2019)