Q33 / 160 · AP EAMCET 2014 · Chemistry

What is $Z$ in the following reaction? $\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CO}_2^{\ominus} \mathrm{Na}^{\oplus} \stackrel{\mathrm{NaOH} / \mathrm{CaO}}{\longrightarrow} Z$

  • A
    propane
  • B
    $n$-butane
  • Correct answer
    C
    ethane
  • D
    ethyne

Solution

$$ \begin{aligned} & \underset{\text { Sodium propanoate }}{\mathrm{CH}_3 \mathrm{CH}_2-\mathrm{CO}_2^{-} \mathrm{Na}^{+}}+\mathrm{NaOH} \underset{\text { Decarboxylation }}{\longrightarrow} \\ & \mathrm{CH}_3-\underset{\text { Ethane }}{\mathrm{CH}_3+\mathrm{Na}_2 \mathrm{CO}_3} \end{aligned} $$ Ethane

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

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