NEET2020Chemistry-Coordination Compounds
NEET 2020 Chemistry Complex Formation MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Urea reacts with water to form A which will decompose to form B. B when passed through Cu²⁺ (aq), deep blue colour solution C is formed. What is the formula of C from the following ?
A
Cu(OH)₂
B
CuCO₃·Cu(OH)₂
C
CuSO₄
D
[Cu(NH₃)₄]²⁺
Correct Answer
Option D
Detailed Explanation
Urea reacts with water to form ammonia (A). Ammonia decomposes to form NH₃ (B), which reacts with Cu²⁺ to form the deep blue complex [Cu(NH₃)₄]²⁺ (C).
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