
Primary amines can be converted into alcohols by the action of
(A) Alkali
(B) Nitrous acid
(C) Reducing agent
(D) Oxidising agent
Answer
162.6k+ views
Hint: Primary amines are the amines in which the N of $N{{H}_{2}}$ group is attached to only one carbon. In the conversion of primary amines to alcohol, the amine $(-N{{H}_{2}})$ functional group is replaced by a hydroxyl ($-OH$) group.
Complete Step by Step Solution:
A primary amine can be converted into alcohol by the action of nitrous acid ($NaN{{O}_{2}}$ +$HCl$) on it. When nitrous acid ($NaN{{O}_{2}}$ +$HCl$) is treated with primary amines at a low temperature (273K – 278K), it gives rise to diazonium salt. When this diazonium salt is hydrolysed or treated with dilute acid, it forms alcohol. Along with the alcohol, side products like nitrogen (${{N}_{2}}$ ) gas and hydrochloric acid ($HCl$ ) are also formed.

Correct Option: (B) Nitrous acid.
Additional Information: Alcohols have a wide range of applications in our daily lives. The paper we use for writing, the sugar we eat, and the sanitizers that we use to disinfect our hands are all made up of compounds that contain hydroxyl groups. The alcohols are soluble in water due to their ability to form hydrogen bonds in water. However, this solubility decreases with an increase in the size of alkyl or aryl groups.
Note: The well-known trihydric alcohol, glycerol ($C{{H}_{2}}(OH)-C{{H}_{2}}(OH)-C{{H}_{2}}(OH)$ )(IUPAC Name-Propane-1,2,3-triol) has various uses. It is used for the treatment of constipation. It can also be used as a solvent for flavours and food colours and for improving the performance of athletes.
Complete Step by Step Solution:
A primary amine can be converted into alcohol by the action of nitrous acid ($NaN{{O}_{2}}$ +$HCl$) on it. When nitrous acid ($NaN{{O}_{2}}$ +$HCl$) is treated with primary amines at a low temperature (273K – 278K), it gives rise to diazonium salt. When this diazonium salt is hydrolysed or treated with dilute acid, it forms alcohol. Along with the alcohol, side products like nitrogen (${{N}_{2}}$ ) gas and hydrochloric acid ($HCl$ ) are also formed.

Correct Option: (B) Nitrous acid.
Additional Information: Alcohols have a wide range of applications in our daily lives. The paper we use for writing, the sugar we eat, and the sanitizers that we use to disinfect our hands are all made up of compounds that contain hydroxyl groups. The alcohols are soluble in water due to their ability to form hydrogen bonds in water. However, this solubility decreases with an increase in the size of alkyl or aryl groups.
Note: The well-known trihydric alcohol, glycerol ($C{{H}_{2}}(OH)-C{{H}_{2}}(OH)-C{{H}_{2}}(OH)$ )(IUPAC Name-Propane-1,2,3-triol) has various uses. It is used for the treatment of constipation. It can also be used as a solvent for flavours and food colours and for improving the performance of athletes.
Recently Updated Pages
How To Find Mean Deviation For Ungrouped Data

Difference Between Molecule and Compound: JEE Main 2024

Ammonium Hydroxide Formula - Chemical, Molecular Formula and Uses

Difference Between Area and Surface Area: JEE Main 2024

Difference Between Work and Power: JEE Main 2024

Difference Between Acetic Acid and Glacial Acetic Acid: JEE Main 2024

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility, & More

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Displacement-Time Graph and Velocity-Time Graph for JEE

Types of Solutions

Degree of Dissociation and Its Formula With Solved Example for JEE

Electric Field Due to Uniformly Charged Ring for JEE Main 2025 - Formula and Derivation

Other Pages
NCERT Solutions for Class 12 Chemistry Chapter 1 Solutions

JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

Solutions Class 12 Notes: CBSE Chemistry Chapter 1

NCERT Solutions for Class 12 Chemistry Chapter 6 Haloalkanes and Haloarenes

NCERT Solutions for Class 12 Chemistry Chapter 2 Electrochemistry

Electrochemistry Class 12 Notes: CBSE Chemistry Chapter 2
