AIPMT PRELIMS2006Chemistry-Coordination Compounds
AIPMT PRELIMS 2006 Chemistry Complex Ions MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Copper sulphate dissolves in excess of KCN to give :
A
CuCN
B
[Cu(CN)₄]³⁻
C
[Cu(CN)₄]²⁻
D
Cu(CN)₂
Correct Answer
Option B
Detailed Explanation
In excess KCN, copper forms a complex ion [Cu(CN)₄]³⁻ due to the formation of stable cyanide complexes.
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