Urea reacts with water to form \( A \) which will decompose to form...
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2Urea reacts with water to form \( A \) which will decompose to form \( B . B \) when passed through \( \mathrm{Cu}^{2+} \) (aq.), deep blue colour solution \( C \) is formed. What is the formula of \( C \) from the following?
\( \mathrm{P} \)
(NEET 2020)
(a) \( \left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+} \)
(b) \( \mathrm{Cu}(\mathrm{OH})_{2} \)
\( \mathrm{W} \)
(c) \( \mathrm{CuCO}_{3} \cdot \mathrm{Cu}(\mathrm{OH})_{2} \)
(d) \( \mathrm{CuSO}_{4} \)
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