MCQ
On adding $KI $ to a solution of copper sulphate
- ACupric oxide is precipitated
- BMetallic copper is precipitated
- ✓Cuprous iodide is precipitated with liberation of iodine
- DNo change occurs
$2KI + CuS{O_4}\, \to \,Cu{I_2} + {K_2}S{O_4} + {I_2}$
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$(a)$ $\beta$ $-$Elimination reaction
$(b)$ Follow Zaitsev rule
$(c)$ Dehydrohalogenation reaction
$(d)$ Dehydration reaction
[Molar mass of $\mathrm{KCl}=74.5$ ]
$\underset{{{C}_{3}}{{H}_{6}}C{{l}_{2}}}{\mathop{A}}\,\,\xrightarrow[2.\,\,{{H}^{+}}\,\,(\min d)]{\begin{smallmatrix}
1\,.\,\,alcoholic\,\,KOH\,/\,\Delta \\
followed\,\,by\,\,NaN{{H}_{2}}\,/\,\Delta
\end{smallmatrix}}$ $B\,\xrightarrow[{{H}_{2}}{{O}_{2}}/\overset{\Theta }{\mathop{O}}\,H]{{{B}_{2}}{{H}_{6}}}C$
$A\,\xrightarrow{aq.\,\,KOH\,(excess)}C$
