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Organic Chemistry Questions and Answers – Prepartions 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 of the following reagent can be used to carry out this synthesis of glycol?

[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?

[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?

[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?

[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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