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Standard XII
Chemistry
Nucleophilic Addition at the Carbonyl
Question

Write chemical equations to illustrate the following name reactions:
(i) Clemmensen's reduction
(ii) Rosenmund's reduction
(iii) HVZ reaction

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Solution
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Clemmensen reduction
R.E.F image
(Rosenmund's reduction)
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Hell-Volhard Zelinsky Reaction

792475_805528_ans_a7b53a25f827465083923b4423d12ec3.png

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Similar Questions
Q1
Write chemical equations to illustrate the following name reactions:
(i) Clemmensen's reduction
(ii) Rosenmund's reduction
(iii) HVZ reaction
View Solution
Q2
(a) Account for the following :

(i) Cl−CH2COOH is a stronger acid than CH3COOH.

(il) Carboxylic acids do not give reactions of carbonyl group.

(b) Write the chemical equations to illustrate the following name reactions :

(i) Rosenmund reduction

(ii) Cannizzaro's reaction

(c) Out of CH3CH2−CO−CH2−CH3 and CH3CH2−CH2−CO−CH3, which gives iodoform test?
View Solution
Q3
(a) Account for the following:
(i) CH3CHO is more reactive than CH3COCH3 towards reaction with HCN.
(ii) Carboxylic acid is a stronger acid than phenol.
(b) Write the chemical equations to illustrate the following name reactions:
(i) Wolff-Kishner reduction
(ii) Aldol condensation
(iii) Cannizzaro reaction
View Solution
Q4
Select the reaction(s) in which −C=O group changes to −CH2.
A) Clemmensen reduction
B) Wolff-Kishner reduction
C) Aldol condensation
D) Rosenmund reduction
View Solution
Q5
Give balanced equations for the following named reactions:
(i) Reimer-Tiemann reaction
(ii) Rosenmund reaction
(iii) Hoffmann's degradation reaction
View Solution