Which sequence of groups replace OH of carboxylic acid to halides, esters and amides respectively:
Correct answer: B. -X, -OR, -NH2
- A. -OH, -X, -NH2
- B. -X, -OR, -NH2
- C. -NH2, -H, -X
- D. -X, -OR, -NO2
Explanation
Carboxylic acid derivatives are formed by replacing the -OH group. Replacing it with a halogen (-X) gives an acid halide. Replacing it with an alkoxy group (-OR) gives an ester. Replacing it with an amino group (-NH2) gives an amide.
Last updated
About Carboxylic Acid Derivatives
Carboxylic acid derivatives include acid halides, acid anhydrides, esters and amides, formed by replacing the hydroxyl group of a carboxylic acid. Their nomenclature, structures, preparation, hydrolysis and relative reactivity are linked through nucleophilic acyl substitution, which differs from the nucleophilic addition reactions of aldehydes and ketones.
Practise Carboxylic Acids
550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A compound has the following properties:1. It is liquid at r.t.p2. It does not mix completely with water3. It does not decolorize KMnO4 What could it be?
Acetic acid is reacted with NH3, and resulting compound is strongly heated. Identify the compound formed?
Acetic acid reacts with thionyl chloride to form acetyl chloride, which species acts as nucleophile in the reaction
Acetic anhydride is obtained from acetyl chloride in the reaction with:
Acetyl chloride is soluble in which solvent: