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Organic Chemistry Questions and Answers – Reactions of Glycols | 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 catalyst is used for reaction of ethylene glycol with acetic acid?
[A] Amberlyst 36
[B] Hydrogen peroxide
[C] Potassium permanganate
[D] Aluminium bromide
Answer: Amberlyst 36
(2) What is the principle product of the acid catalysed reaction of acetone and ethylene glycol?

[A] (a)
[B] (b)
[C] (c)
[D] (d)
Answer: (b)

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(3) What will be the product when ethylene glycol and terephthalic acid reacts?

[A] (a)
[B] (b)
[C] (c)
[D] (d)
Answer: (d)
(4) What happens when glycol reacts with lead tetraacetate?
[A] No reaction
[B] Ketones will be formed
[C] Aldehyde will not be formed
[D] Monohydric alcohols will be formed
Answer: Ketones will be formed
(5) What is the intermediate form in the mechanism of the lead acetate and glycol?
[A] Three membered cyclic ring
[B] Four membered cyclic ring
[C] Five membered cyclic ring
[D] Six membered cyclic ring
Answer: Four membered cyclic ring
(6) What is the name of the reaction when lead tetraacetate is used cleave a carbon-carbon bond in a glycol?
[A] Criegee oxidation
[B] Swern oxidation
[C] Baeyer-Villiger Oxidation
[D] Jones oxidation
Answer: Criegee oxidation
(7) Which of the following statement is not true about criegee oxidation?
[A] The oxidative cleavage of an alpha,beta-diol using lead tetraacetate to give the corresponding carbonyl compounds
[B] It is analogous but milder than the Malaprade reaction
[C] This oxidation was discovered by Rudolf Criegee and coworkers and first reported in 1931
[D] Rate of reaction do not depend upon stereochemistry of glycol
Answer: Rate of reaction do not depend upon stereochemistry of glycol
(8) Criegee oxidation of glycol should be performed in which type of medium?
[A] Hydrous
[B] Anhydrous
[C] Acidic
[D] Basic
Answer: Anhydrous
(9) What happens when glycol reacts with periodic acid?
[A] No reaction
[B] Ketones will be formed
[C] Aldehyde will not be formed
[D] Monohydric alcohols will be formed
Answer: Ketones will be formed
(10) Ethylene glycol on treatment with phosphorus tri-iodide yields
[A] ethyl iodide
[B] ethylene di-iodide
[C] ethylene
[D] ethane
Answer: ethylene di-iodide

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