Q29 / 160 · AP EAMCET 2019 (23 Apr Shift 1) · Chemistry

Which one of the following reactions does not take place?

  • Correct answer
    A
    \(2 \mathrm{CuSO}_4(\mathrm{aq})+4 \mathrm{KI}(\mathrm{aq}) \longrightarrow 2 \mathrm{Cul}_2+2 \mathrm{~K}_2 \mathrm{SO}_4\)
  • B
    \(2 \mathrm{CuSO}_4(\mathrm{aq})+4 \mathrm{KCl}(\mathrm{aq}) \longrightarrow 2 \mathrm{CuCl}_2+2 \mathrm{~K}_2 \mathrm{SO}_4\)
  • C
    \(\mathrm{CuSO}_4(\mathrm{aq})+\mathrm{Zn}(\mathrm{s}) \longrightarrow \mathrm{ZnSO}_4(\mathrm{aq})+\mathrm{Cu}(\mathrm{s})\)
  • D
    \(2 \mathrm{CuSO}_4(\mathrm{aq})+4 \mathrm{KF}(\mathrm{aq}) \longrightarrow 2 \mathrm{CuF}_2+2 \mathrm{~K}_2 \mathrm{SO}_4\)

Solution

The below given reaction does not take place: \(2 \mathrm{CuSO}_4(a q)+4 \mathrm{KI}(a q) \longrightarrow 2 \mathrm{CuI}_2+2 \mathrm{~K}_2 \mathrm{SO}_4\) It take place as follows: \(2 \mathrm{CuSO}_4(a q)+4 \mathrm{KI}(a q) \longrightarrow \mathrm{Cu}_2 \mathrm{I}_2+\mathrm{K}_2 \mathrm{SO}_4+\mathrm{I}_2\)

Hence, the correct answer is option: 'A'.

Relevant Questions