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Question: <img src="https://cdn.pureessence.tech/canvas_115.png?top_left_x=1317&top_left_y=1441&width=300&heig...

→ Ether (2)Zn\xrightarrow [ \text { Ether } ] { ( 2 ) \mathrm { Zn } } Q

Give the molecular weight of Q :

A

135

B

140

C

138

D

133

Answer

138

Explanation

Solution

+ Br2

Note : Addition of HBr by free radical mechanism.