MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Cross Aldol Condensation

i Write Hell ...

Question

(i) Write Hell - Volhard - Zelinsky reaction.
(ii) Write cross - aldol condensation.
(iii) Ethanoic acid is weaker acid than benzoic acid. Why?

Open in App

Solution

$(i)$ HVZ reaction: Refer IMAGE $01$
$(i i)$ Cross-aldol condensation: Refer IMAGE $02$
$(i i i)$ Ethanoic acid is weaker than Benzoic acid: because aryl groups are more electrons withdrawing groups than aliphatic group.
Hence, Ethanoic acid is weaker acid.

Suggest Corrections

thumbs-up

0

Similar questions

Benzoic acid is stronger than methanoic acid but weaker than ethanoic acid.

Q. How will you convert the following in not more than two steps:
(i) Benzoic acid to Benzaldehyde
(ii) Acetophenone to Benzoic acid
(iii) Ethanoic acid to

2

- Hydroxyethanoic acid

Q. (a) Write a test to distinguish between aldehydes and ketones.
(b) How will you prepare benzaldehyde by Etard's reaction?
(c) How will you bring about the following conversions? (Write the chemical equations)
(i) Ethanol

\to

Ethanoic acid
(ii) Benzamide

\to

Benzoic acid
(iii) Benzaldehyde

\to

Meta-nitrobenzaldehyde.

Q. (a) Account for the following:
(i)

C H_{3} C H O

is more reactive than

C H_{3} C O C H_{3}

towards reaction with

H C N

.
(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

Write the formulae of (a) methanoic acid, and (b) ethanoic acid.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Reactions Involving Alpha Hydrogens - II

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Cross Aldol Condensation

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon