See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

2+ Ni 2 O  2+ Ni 2 O  2 O  2 O  2 O  2 O  2+ Ni 2+ Ni + Li 3 Ni  + Li ion occupy 2+ Ni sites to form substitutional defects. In order to maintain the charge neutrality, every + Li ion is balanced by 3+ Ni ion and it becomes a p-type semiconductor. AITS-FT-VIII (Paper-1)-PCM (Sol.)-JEE(Advanced)/18 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 7