Account for the following : (i) Benzoic acid does not undergo Friedel crafts reaction (ii) `Pk_(a)` value of chloroacetic acid is lower than `Pk_(a)`

Question

Account for the following : (i) Benzoic acid does not undergo Friedel crafts reaction (ii) `Pk_(a)` value of chloroacetic acid is lower than `Pk_(a)`

Account for the following :
(i) Benzoic acid does not undergo Friedel crafts reaction
(ii) `Pk_(a)` value of chloroacetic acid is lower than `Pk_(a)` of acetic acid.

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Related Questions

A Friedel-Crafts reaction of benzene with chloroform produces

2 Answers 4 Views

The considerably greater acidic strength of PhOH `(pK_(a) = 10) than that of ROH `(pK_(a) = 18)` is due to the fact that

2 Answers 5 Views

Distinguish between current account and capital account of balance of payments account. Is import of machinery recorded in current account or capital

2 Answers 4 Views

`{:("Oxalic acid ",pK_(1)),("Molonic acid",pK_(2)),("Heptanedioic acid ",pK_(3)):}` Where `pK_(1),pK_(2),pK_(3)` are first ionization constants. Corre

2 Answers 4 Views

Acetic acid, `(CH_(3)COOH),` has a `pK_(a)` of `4.8`. Ethanol, `(CH_(3)CH_(2)OH)` has a `pK_(a)` of `16.0` . What are the major species present, when

2 Answers 4 Views

Give a reason for the following : (i) Chloroacetic acid is more acidic than acetic acid. (ii) Cacboxylic acids have higher boiling points than alcohol

2 Answers 5 Views

Arrange the following in order of decreasing of acid strenth indicated ? (i) Benzoic acid, 3, 4-Dinitrobenzoic acid, 4-Methylbenzoic acid ltbgt (ii) `

2 Answers 4 Views

Account for the following : (i) Benzoic acid does not undergo Friedel crafts reaction (ii) `Pk_(a)` value of chloroacetic is lower than `Pk_(a)` of ac

2 Answers 4 Views

Assertion : Phenol and benzoic acid can be distinguished by `NaHCO_(3)`. Reason : Benzoic acid is a stronger acid than phenol.

2 Answers 4 Views

If `pK_(a)` of acetic acid and `pK_(b)` of ammonium hydroxide are `4.76` each. Find the pH of ammonium acetate.

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

(i) The carboxyl (-COOH) group present on the benzene ring deactivates the ring due to its electron withdrawing nature to very large extent. As a result, the Friedel Craft reaction involving the electrophile attack of alkyl carbocation from R-X in the presence of anhydrous `AlCl_(3)`, is not feasible. Moreover, anhydrous `AlCl_(3)` is a Lewis acid. It co-ordinates with the carboxyl group and fails to release the alkyl / acyl carbocation nedded for electrophile attack.