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NEET 2009

Exam: NEET
Year: 2009
Subject: Chemistry
Chapter: Chemistry in Everyday Life

NEET 2009 · Chemistry · Chemistry in Everyday Life

Which of the following reactions is an example of nucleophilic...

Which of the following reactions is an example of nucleophilic substitution reaction?

Options

A $\mathrm{RX}+\mathrm{Mg} \rightarrow \mathrm{RMgX}$
B $\mathrm{RX}+\mathrm{KOH} \rightarrow \mathrm{ROH}+\mathrm{KX}$
C $2 \mathrm{RX}+2 \mathrm{Na} \rightarrow \mathrm{R}-\mathrm{R}+2 \mathrm{NaX}$
D $\mathrm{RX}+\mathrm{H}_2 \rightarrow \mathrm{RH}+\mathrm{HX}$

Correct answer

B. $\mathrm{RX}+\mathrm{KOH} \rightarrow \mathrm{ROH}+\mathrm{KX}$

Step-by-step solution

\mathrm{R}-\mathrm{X}+\mathrm{KOH} \rightarrow \mathrm{R}-\mathrm{OH}+\mathrm{KX}

\mathrm{X}-

replaced by

\mathrm{OH}-

show nucleophilic substitution reaction

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