Organic Chemistry Questions and Answers – Esters | Organic Chemistry Multiple Choice Questions and Answers

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Questions
1 Which of the following compounds is an ester?

Organic Chemistry

Organic Chemistry

A (a)
B (b)
C (c)
D (d)

Answer:(c)
2 Which of the following is used as catalyst for the esterification of carboxylic acid and alcohol?
A Nitrous acid
B Sulphuric acid
C Sulphurous acid
D Nitric acid

Answer: Sulphuric acid
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3 What will be the product for the given reaction?

CH3OH + CO →?

A Ethyl formate
B Methyl formate
C Ethyl acetate
D Methyl acetate

Answer: Methyl formate
4 Hydrolysis of ester leads to the formation of which of the following products in basic medium?
A Ether and alcohol
B Alcohol and sodium carboxylate
C Aldehyde and alcohol
D Sodium carboxylate

Answer: Alcohol and sodium carboxylate
5 What will be the product for the given reaction?

C2H4 + CH3CO2H + 1⁄2 O2 →?

A Ethyl formate
B Vinyl formate
C Ethyl acetate
D Methyl acetate

Answer: Vinyl formate
6 What is the characteristic smell for ester?
A Fruity like smell
B Fish like smell
C Rotten egg smell
D Alcoholic smell

Answer:Fruity like smell
7 Salts of carboxylate anions can be alkylating agent with alkyl halides to give esters. In the case that an alkyl chloride is used, an iodide salt can catalyze the reaction. What is the name reaction for the given reaction?
A Favorskii rearrangement
B Baeyer–Villiger oxidation
C Pinner reaction
D Finkelstein reaction

Answer:Finkelstein reaction
8 What will be the product of given reaction?

Organic Chemistry

A Ether and alcohol
B Alcohol and sodium carboxylate
C Aldehyde and alcohol
D Carboxylic acid and alkene

Answer: Carboxylic acid and alkene
9 Fries rearrangement reaction of phenol ester leads to the formation which type of product?
A Ketone
B Aldehyde
C Alcohol
D Alkene

Answer: Ketone
10 What is the order or solubility in water of the following compound?

i) ethyl methanoate

ii) ethyl butanoate

iii) ethyl ethanoate

iv) ethyl propanoate

A i > ii > iii > iv
B i > iii > iv > ii
C i > ii > iv > iii
D iii > i > iv > ii

Answer: i > iii > iv > ii

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