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

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Free download in PDF Organic Chemistry Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like UPSC, NDA, SSC etc. These short solved questions or quizzes are provided by Gkseries./p>

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(1) Which of the following compounds is an ester?

[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?

[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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