Select Goal &
City
Select Goal
Explore
Question:
Acetamide is treated with the following reagents separately. Which one of these would yield methyl amine?
Acetamide is treated with the following reagents separately. Which one of these would yield methyl amine?
Updated On: Jun 14, 2022
- $NaOH-Br_2$
- Sodalime
- Hot conc. $H_2SO_4$
- $PCl_5$
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
The reagent which can convert -$CONH_2$ group into - $NH_2$ group is used for this reaction. Among the given reagents only NaOH/B$r_2$ converts -$CONH_2$ group to - $NH_2$ group, thus it is used for converting acetamide to methyl amine.
This reaction is called Hoffmann bromamide reaction, in which primary amides on treatment with
$Br_2 /NaOH$ form primary amines. $CH_3 CONH_2 +NaOH + Br_2 \longrightarrow CH_3 NH_2$ $ \, \, Acetamide Methyl amine$ $ + NaBr + Na_2 CO_3 + H_2 O$
This reaction is called Hoffmann bromamide reaction, in which primary amides on treatment with
$Br_2 /NaOH$ form primary amines. $CH_3 CONH_2 +NaOH + Br_2 \longrightarrow CH_3 NH_2$ $ \, \, Acetamide Methyl amine$ $ + NaBr + Na_2 CO_3 + H_2 O$
Was this answer helpful?
0
0
Top Questions on Aldehydes, Ketones and Carboxylic Acids
- Read the following passage and answer the next five questions based on it.
Aldehydes are generally more reactive than ketones in nucleophilic addition reactions due to steric and electronic reasons. Sterically, the presence of two large groups in ketones hinders the attack of nucleophile to carbonyl carbon than in aldehydes. Electronically, aldehydes are more reactive than ketones because two alkyl groups reduce the electrophilicity of the carbonyl carbon more effectively than in the former- CUET (UG) - 2024
- Chemistry
- Aldehydes, Ketones and Carboxylic Acids
- For an SN2 reaction, arrange the following alkyl halides in increasing order of reactivity:
(A) CH3CH2CH2CH2
(B) CH3CH2CH(Br)CH3
(C) (CH3)3
(D) (CH3)2CHCH2- CUET (UG) - 2024
- Chemistry
- Aldehydes, Ketones and Carboxylic Acids
- What is the color of copper compound formed in Fehling’s test for aliphatic aldehydes?
- CUET (UG) - 2024
- Chemistry
- Aldehydes, Ketones and Carboxylic Acids
- What is the product when glucose reacts with bromine water?
- CUET (UG) - 2024
- Chemistry
- Aldehydes, Ketones and Carboxylic Acids
- The increasing order of acidity of the following compounds based on pKa values: BrCH$_2$COOH, ClCH$_2$COOH, FCH$_2$COOH, HCOOH
- CUET (UG) - 2024
- Chemistry
- Aldehydes, Ketones and Carboxylic Acids
View More Questions
Questions Asked in JEE Advanced exam
- A region in the form of an equilateral triangle (in x-y plane) of height L has a uniform magnetic field 𝐵⃗ pointing in the +z-direction. A conducting loop PQR, in the form of an equilateral triangle of the same height 𝐿, is placed in the x-y plane with its vertex P at x = 0 in the orientation shown in the figure. At 𝑡 = 0, the loop starts entering the region of the magnetic field with a uniform velocity 𝑣 along the +x-direction. The plane of the loop and its orientation remain unchanged throughout its motion.
Which of the following graph best depicts the variation of the induced emf (E) in the loop as a function of the distance (𝑥) starting from 𝑥 = 0? - Two beads, each with charge q and mass m, are on a horizontal, frictionless, non-conducting, circular hoop of radius R. One of the beads is glued to the hoop at some point, while the other one performs small oscillations about its equilibrium position along the hoop. The square of the angular frequency of the small oscillations is given by [ \(\epsilon_0 \)is the permittivity of free space.]
- JEE Advanced - 2024
- Moving charges and magnetism
- A group of 9 students, s1, s2,…., s9, is to be divided to form three teams X, Y and Z of sizes 2, 3, and 4, respectively. Suppose that s1 cannot be selected for the team X and s2 cannot be selected for the team Y. Then the number of ways to form such teams, is _______.
- JEE Advanced - 2024
- Combinations
- Let \(\vec{p}=2\hat{i}+\hat{j}+3\hat{k}\) and \(\vec{q}=\hat{i}-\hat{j}+\hat{k}\). If for some real numbers α, β and γ we have
\(15\hat{i}+10\hat{j}+6\hat{k}=α(2\vec{p}+\vec{q})+β(\vec{p}-2\vec{q})+γ(\vec{p}\times\vec{q})\),
then the value of γ is ________.- JEE Advanced - 2024
- Vector Algebra
- Let X be a random variable, and let P(X = x) denote the probability that X takes the value x. Suppose that the points (x, P(X = x)), x = 0,1,2,3,4, lie on a fixed straight line in the xy -plane, and P(X = x) = 0 for all x ∈ R - {0,1,2,3,4}. If the mean of X is \(\frac{5}{2}\) , and the variance of X is α, then the value of 24α is ______.
- JEE Advanced - 2024
- Probability
View More Questions
Concepts Used:
Aldehydes, Ketones, and Carboxylic Acids
Aldehydes, Ketones, and Carboxylic Acids are carbonyl compounds that contain a carbon-oxygen double bond. These organic compounds are very important in the field of organic chemistry and also have many industrial applications.
Aldehydes:
Aldehydes are organic compounds that have the functional group -CHO.
Preparation of Aldehydes
Acid chlorides are reduced to aldehydes with hydrogen in the presence of palladium catalyst spread on barium sulfate.
Ketones:
Ketones are organic compounds that have the functional group C=O and the structure R-(C=O)-R’.
Preparation of Ketones
Acid chlorides on reaction with dialkyl cadmium produce ketones. Dialkyl cadmium themselves are prepared from Grignard reagents.
Carboxylic Acid:
Carboxylic acids are organic compounds that contain a (C=O)OH group attached to an R group (where R refers to the remaining part of the molecule).
Preparation of Carboxylic Acids
Primary alcohols are readily oxidized to carboxylic acids with common oxidizing agents such as potassium permanganate in neutral acidic or alkaline media or by potassium dichromate and chromium trioxide in acidic media.
SUBSCRIBE TO OUR NEWS LETTER
COLLEGE NOTIFICATIONSEXAM NOTIFICATIONSNEWS UPDATES
Download the Collegedunia app on 
© 2024 Collegedunia Web Pvt. Ltd. All Rights Reserved