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

Questions
1 Which of the following reagent can be used to carry out this synthesis of glycol?

Organic Chemistry

A Benedict reagent
B Baeyer’s reagent
C Barfoed reagent
D Seliwanoff reagent

Answer:Baeyer’s reagent
2 Which of the following is the industrial method of formation of glycol?
A Hydroxylation of alkene by Bayer’s reagent
B From 1,2-dibromoethane
C Oxidation of ethylene and using Ag as catalyst
D Ethylene treatment with HOCl

Answer: Oxidation of ethylene and using Ag as catalyst
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3 Which type of product is formed when Cold dilute alkaline solution of Bayer’s reagent reacts with alkene?
A Syn-glyol
B Syn- and anti-geometry will not be there in glycol
C Anti-glyol
D Trans glycol

Answer: Syn-glyol
4 Which of the following statement is not true about preparation of alcohol?
A French chemist Charles-Adolphe Wurtz (1817–1884) first prepared ethylene glycol in 1856
B First synthesis of glycol was from “ethylene iodide” (C2H4I2) with silver acetate and then hydrolyzed the resultant “ethylene diacetate” with potassium hydroxide
C It was synthesized from ethylene dichloride in Germany and used as a substitute for glycerol in the explosives industry
D There is no biological process for the synthesis of glycol

Answer:There is no biological process for the synthesis of glycol
5 What will be the compound A which can be used to carry out this synthesis of glycol?

Organic Chemistry

A RCOR’
B RCO2OH
C RCHO
D RCOOH

Answer: RCO2OH
6 What will be the catalyst A which can be used to carry out this synthesis of glycol?

Organic Chemistry

A Catalyst Cu, 200 – 400℃
B Catalyst Pt, 100 – 200℃
C Catalyst Ni, 200 – 400℃
D Catalyst Ag, 200 – 400℃

Answer:Catalyst Ag, 200 – 400℃
7 What will be the product A and B for the given reaction?

Organic Chemistry

A ethane, glycol
B glycol, ethylene chlorohydrine
C Ethylene chlorohydrine, glycol
D ethan-1-ol, Glycol

Answer: Ethylene chlorohydrine, glycol
8 Which compound is used with 1,2- dibromoethane for the formation of glycol?
A Na2CO3
B NaHCO3
C NaOH
D CH3COONa

Answer: Na2CO3
9 Which of the following is the most convenient and inexpensive method of formation of glycol?
A Hydroxylation of alkene by Bayer’s reagent
B From 1,2-dibromoethane
C Oxidation of ethylene and using Ag as catalyst
D Ethylene treatment with HOCl

Answer: Hydroxylation of alkene by Bayer’s reagent
10 Which of the following is not a method of preparation of glycol?
A Shell’s omega method
B From carbon monoxide
C From Dimethyl oxalate
D From nitrogen

Answer: From nitrogen

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