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Chemistry Part-II

Aldehydes, Ketones and Carboxylic Acids

How will you convert ethanal into the following compounds? (i)

Chemistry Part-II

Class 12

NCERT

Chapter 1: Haloalkanes and Haloarenes

33 questions

Chapter 2: Alcohols, Phenols and Ethers

38 questions

Chapter 3: Aldehydes, Ketones and Carboxylic Acids

26 questions

Which of the following compounds would undergo aldol condensation, which undergoe Cannizzaro reaction and which neither? Write the structures of the expected products of aldol condensation and Cannizzaro reaction.
(i) Methanal (ii) 2-Methylpentanal (iii) Benzaldehyde
(iv) Benzophenone (v) Cyclohexanone (vi) 1-Phenylpropanone
(vii) Phenylacetaldehyde (viii) Butan-1-ol (ix) 2,2-Dimethylbutanal

How will you convert ethanal into the following compounds?
(i) Butane-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid

Write structural formulas and names of four possible aldol condensation products from propanal and butanal. In each case, indicate which aldehyde acts as nucleophile and which as electrophile.

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Chapter 4: Amines

18 questions

Chapter 5: Biomolecules

25 questions

Chapter 6: Polymers

21 questions

Chapter 7: Chemistry in Everyday Life

27 questions

Question

Medium

Solving time: 5 mins

How will you convert ethanal into the following compounds?
(i) Butane-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid

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Updated on: Feb 26, 2023

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Chemistry Part-II (NCERT)

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How will you convert ethanal into the following compounds?
(i) Butane-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid

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Text solutionVerified

(i) Ethanal into Butane-

1, 3

-diol
Aldol condensation (in presence of dil

N a O H

) followed by reduction with sodium borohydride.

(ii) Ethanal into But-

2

-enal
Aldol condensation (in presence of dil

N a O H

) followed by dehydration.

(iii) Ethanal into But-

2

-enoic acid
Aldol condensation (in presence of dil

N a O H

) followed by dehydration and oxidation with Tollen's reagent.

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How will you convert ethanal into the following compounds?
(i) Butane-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid

Write structural formulas and names of four possible aldol condensation products from propanal and butanal. In each case, indicate which aldehyde acts as nucleophile and which as electrophile.

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Question Text	How will you convert ethanal into the following compounds? (i) Butane-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid
Updated On	Feb 26, 2023
Topic	Aldehydes, Ketones and Carboxylic Acids
Subject	Chemistry
Class	Class 12
Answer Type	Text solution:1 Video solution: 4
Upvotes	395
Avg. Video Duration	7 min

How will you convert ethanal into the following compounds?
(i) Butane-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid

Text solutionVerified

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How will you convert ethanal into the following compounds?(i) Butane-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid

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How will you convert ethanal into the following compounds?
(i) Butane-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid