Q14 / 160 · AP EAMCET 2018 (22 Apr Shift 2) · Chemistry

Identify $X, Y$ and $Z$ in the following reaction. $$ \begin{array}{ccc} & 2 \mathrm{CH}_3 \mathrm{Cl}+X \underset{570 \mathrm{~K}}{\longrightarrow} \\ X & Y & Z \end{array} $$

  • A
    $\mathrm{C} \quad \mathrm{Ni} \quad\left(\mathrm{CH}_3\right)_2 \mathrm{Si}(\mathrm{OH})_2$
  • B
    $\mathrm{Si} \quad \mathrm{Zn} \quad\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2$
  • Correct answer
    C
    $\begin{array}{lll}\mathrm{Si} & \mathrm{Cu} & \left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2\end{array}$
  • D
    $\mathrm{H}_2 \mathrm{O} \quad \mathrm{Si} \quad\left(\mathrm{CH}_3\right)_2 \mathrm{Si}(\mathrm{OH})_2$

Solution

$2 \mathrm{CH}_3 \mathrm{Cl}+X \underset{570 \mathrm{~K}}{\stackrel{Y}{\longrightarrow}} Z$ Silicon react with chloromethane. $$ X=\mathrm{Si}, \quad Y=\mathrm{Cu}, \quad Z=\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2 $$ Complete reaction, $$ 2 \mathrm{CH}_3 \mathrm{Cl}+\mathrm{Si} \underset{570 \mathrm{~K}}{\stackrel{\mathrm{Cu}}{\longrightarrow}}\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2 $$

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

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