Problem

Problem

Direction (Q. Nos. 9-18) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct. Which of the following is/are example(s) of disproportionation reaction(s)? a. 3ClO−+2Cr(OH)4−→2CrO42−+3Cl−3\text{ClO}^- + 2\text{Cr}(\text{OH})_4^- \rightarrow 2\text{CrO}_4^{2-} + 3\text{Cl}^- b. Cu2O+2H+→Cu+Cu2++H2O\text{Cu}_2\text{O} + 2\text{H}^+ \rightarrow \text{Cu} + \text{Cu}^{2+} + \text{H}_2\text{O} c. CuS+O2→Cu+SO2\text{CuS} + \text{O}_2 \rightarrow \text{Cu} + \text{SO}_2 d. 2HCuCl2→Cu+Cu2++4Cl−+2H+2\text{HCuCl}_2 \rightarrow \text{Cu} + \text{Cu}^{2+} + 4\text{Cl}^- + 2\text{H}^+

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