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Question

Identify A and B respectively in the following reaction

$$\displaystyle Br-{ CH }_{ 2 }-{ CH }_{ 2 }-Br\xrightarrow { Excess{ Ag } O{ Ac }  } A\xrightarrow { Hydrolysis } B+2AcOH$$


A
1, 2 - Diacetoxy ethane and 1, 2 - Dibromo ethane
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B
1, 2 - Diacetoxy ethane and Ethylene glycol
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C
Ethylene glycol and Glycerol
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D
Ethylene glycol and 1, 2 - Diacetoxy ethane
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Solution

The correct option is C 1, 2 - Diacetoxy ethane and Ethylene glycol
A and B are 1, 2 - Diacetoxy ethane  and Ethylene glycol respectively.
1,2-dibromoethane reacts with excess silver oxide/ acetic acid to form 1, 2 - Diacetoxy ethane .
Hydrolysis of 1, 2 - Diacetoxy ethane gives Ethylene glycol.
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Chemistry

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