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ChemistryNEET 2020Group 15 and 16: nitrogen, oxygen families

The p-Block Elements

Urea reacts with water to form A, which decomposes to form B. B, when passed through Cu2+(aq)\mathrm{Cu^{2+}(aq)}, forms a deep-blue-coloured solution C. What is the formula of C from the following?

  1. A.CuSO4\mathrm{CuSO_4}
  2. B.[Cu(NH3)4]2+\mathrm{[Cu(NH_3)_4]^{2+}}✓
  3. C.Cu(OH)2\mathrm{Cu(OH)_2}
  4. D.CuCO3⋅Cu(OH)2\mathrm{CuCO_3 \cdot Cu(OH)_2}

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

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From Chemistry › The p-Block Elements › Group 15 and 16: nitrogen, oxygen families — lectures, notes and every past question on it.

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