Organic Chemistry Questions and Answers – Reactions of Glycols | Organic Chemistry Multiple Choice Questions and Answers

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Questions
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?

Organic Chemistry

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?

Organic Chemistry

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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