Urea reacts with water to form A which will decompose to form B . B when passed through Cu^2+(aq) , deep blue colour solution C is formed. What is the - Chemistry MCQ NEET 2020 E1 2026 | ExamTest.live | ExamTest.live

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Urea reacts with water to form A which will decompose to form B . B when passed through C u^{2 +} (a q), deep blue colour solution C is formed. What is the formula of C from the following?

A $C u S O_{4}$
B $[C u (N H_{3})_{4}]^{2 +}$
C $C u (O H)_{2}$
D $C u C O_{3} \cdot C u (O H)_{2}$

Solution & Step-by-step Explanation

N H_{2} CON H_{2} + 2 H_{2} O \to (N H_{4})_{2} C O_{3} (A) (N H_{4})_{2} C O_{3} \to 2 N H_{3} (B) + H_{2} O + C O_{2} C u^{2 +} (a q) + 4 N H_{3} (a q) \to [C u (N H_{3})_{4}]^{2 +} (a q) (C)The deep blue complex is the tetraamminocopper(II) ion.

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Urea reacts with water to form A which will decompose to form B . B when passed through C u^{2 +} (a q), deep blue colour solution C is formed. What is the formula of C from the following?

A

C u S O_{4}

B

[C u (N H_{3})_{4}]^{2 +}

C

C u (O H)_{2}

D

C u C O_{3} \cdot C u (O H)_{2}

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p-Block Elements Ammonia

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