In the following sequence of reactions, \(CH _{3}- Br \stackrel{ KCN }{\longrightarrow} A \stackrel{ H _{3} O ^{+}}{\longrightarrow} B \stackrel{ LiAlH _{4}}{\longrightarrow} C\), the end product C is
- Acetone
- Methane
- Acetaldehyde
- Ethyl alcohol
The Correct Option is D
Solution and Explanation
\(CH _{3}- Br \stackrel{ KCN }{\longrightarrow} CH _{3}- CN \stackrel{ H _{3} O ^{+}}{\longrightarrow} CH _{3} COOH \stackrel{ LiAlH _{4}}{\longrightarrow} CH _{3} CH _{2} OH\)
Methyl bromide undergoes a reaction with \( KCN\) to produce acetonitrile, where the bromine atom is substituted with a cyanide group. The subsequent hydrolysis of the cyanide group results in the formation of a carboxylic group. Finally, the reduction of the carboxylic group leads to the formation of a hydroxyl group.
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Concepts Used:
Alcohols
What is Alcohol?
Alcohol is a derivative of water (H2O) that has one, two, or more hydroxyl groups that are attached to a carbon atom of a hydrocarbon chain (an alkyl group). It is one of the most common organic compounds used in sweeteners, fragrances, and medicine.
Read More: Types of Alcohol
Uses of Alcohol:
- Ethanol is the alcohol used in alcoholic drinks. It can be used as an industrial methylated spirit where methanol is used very little in quantity as it can be dangerous.
- It is used as fuel to produce carbon dioxide and water by the process of fermentation. Whereas methanol burns carbon dioxide and water to facilitate combustion.
- Alcohol is an organic compound used as a solvent that is insoluble in water.
- It can be used to lower the level of sugar.
- Alcohol is used as a preservative in laboratories.