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An organic compounds contains C= 21.56%,...

An organic compounds contains C= 21.56%, H= 4.56% and Br= 73.36 %. Its molecular mass is 109. Its molecular formula is

A

`C_2H_5Br`

B

`C_3H_7Br`

C

`C_4H_9Br`

D

`C_6H_5Br`

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