Esters can be formed by nucleophilic substitution reactions of : (a) carboxylic acids and alcohols ; acid-catalyzed (b) acid chlorides and alcohols (c) both of the above (d) neither of the above

Esters can be formed by nucleophilic substitution reactions of :
(a) carboxylic acids and alcohols ; acid-catalyzed
(b) acid chlorides and alcohols
(c) both of the above
(d) neither of the above
by

1 Answer

Answer :

both of the above
by

Related questions

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Last Answer : acid chlorides

Why do aldehydes undergo nucleophilic addition reactions while esters undergo nucleophilic acyl substitution reactions? (a) The carbonyl carbon of an ester is more electrophilic than that of an aldehyde. (b) Aldehydes are more sterically hindered than esters. (c) Once the nucleophile adds to an aldehyde, the tetrahedral intermediate is too sterically hindered to eliminate one of the attached groups. (d) Once the nucleophile adds to an aldehyde, neither H− nor R− can be eliminated since they are strongly basic

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Last Answer : Once the nucleophile adds to an aldehyde, neither H− nor R− can be eliminated since they are strongly basic

The characteristic reaction of carboxylic acids is : (a) electrophilic addition (b) electrophilic substitution (c) nucleophilic addition (d) nucleophilic substitution

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Last Answer : nucleophilic substitution

During preparation of esters from a carboxylic acid and an alcohol in the presence of an acid catalyst, water or the ester formed should be removed as soon as it is formed.

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Which of the following acid-derivatives are most stable? (a) Acid chlorides (b) Esters (c) Amides (d) Anhydrides

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Why does benzene undergo electrophilic substitution reactions easily and nucleophilic substitutions with difficulty?

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Which of the following characterizes the reactions of aldehydes and ketones? (a) electrophilic addition (b) electrophilic substitution (c) nucleophilic acyl substitution (d) nucleophilic addition; free radical addition

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Explain why nucleophilic substitution reactions are not very common in phenols.

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(A) Ethyl chloride is more reactive than vinyl chloride towards nucleophilic substitution reactions. (R) Vinyl chloride is `+I` electron pushing group

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. Hunsdiecker reaction is used for the preparation of (a) Alkyl chlorides and bromides (b) Alkyl nitrates and nitrites (c) Ketenes (d) Alcohols

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Hydrolysis of an ester can be accomplished by(a) base-promoted hydrolysis(b) acid-catalyzed hydrolysis(c) both of the above(d) neither of the above

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Which of the following can undergo nucleophilic substitution under ordinary conditions? I Allyl chloride II Benzyl chloride III n-Propyl chloride IV V

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How many reactions will produce carboxylic acid, as their end product

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Last Answer : How many reactions will produce carboxylic acid, as their end product

How many reactions will produce carboxylic acid, as their end product

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Last Answer : How many reactions will produce carboxylic acid, as their end product

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From two amino acids peptide bond formation involves removal of one molecule of (A) Water (B) Ammonia (C) Carbondioxide (D) Carboxylic acid

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Which of the following statements is not true about fatty acids? (a) Fatty acids are carboxylic acids with long hydrocarbon side chains. (b) The double bonds in unsaturated fatty acids are always conjugated. (c) Most naturally occurring fatty acids contain even numbers of carbons and are unbranched. (d) Fatty acids can be saturated or unsaturated

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Last Answer : The double bonds in unsaturated fatty acids are always conjugated

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Last Answer : Long-chain alkanoic acids

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