Ncert Exercises & Solutions

The reaction is shown below:
\(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{I}+\mathrm{KOH}(\mathrm{aq}) \rightarrow \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}+\mathrm{KI}\)
can be classified as which type of reaction?

1. Electrophilic substitution reaction
2. Nucleophilic substitution reaction
3. Elimination reaction
4. Addition reaction

Hint: A nucleophilic substitution reaction involves replacing a leaving group with a nucleophile.

C H_{3} C H_{2} l + K O H_{(a q)} \to C H_{3} C H_{2} O H + K l

It is an example of nucleophilic substitution reaction. The hydroxyl group of KOH (OH–)
with a lone pair of itself acts as a nucleophile and substitutes iodide ion in CH3CH2I to form
ethanol.

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