Qualitative Analysis - Result Question 11

####11. A metal nitrate reacts with KI to give a black precipitate which on addition of excess of KI convert into orange colour solution. The cation of metal nitrate is

(a) Hg2+

(b) Bi3+

(c) Sn2+

(d) Pb2+

(2005,1M)

Show Answer

Answer:

Correct Answer: 11. (b)

Solution:

  1. Bi3++3I−⟶BiI3↓ Black I− excess [BiI4Γ Orange  solution 
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