Ethylene reacts with bromine to form:

chloroethane

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ethylene dibromide

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cyclohexane

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1

-bromo propane

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Solution

The correct option is B ethylene dibromide
Mechanism:
The top bromine atom becomes attached to both carbon atoms, with the positive charge being found on the bromine rather than on one of the carbons. A bromonium ion is formed.
The bromonium ion is then attacked from the back by a bromide ion formed in a nearby reaction. It can't be attacked by its original bromide ion because the bromonium ion is completely cluttered up with a positive bromine on that side.
Hence Final product is ethylene Bromide

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Similar questions

In methyl alcohol solution, bromine reacts with ethylene to yield in addition to 1, 2-dibromoethane because

B r C H_{2} C H_{2} O C H_{3}

H B r

(R O O R)

2

1

2

N a I

B r C H_{2} C H_{2} O C H_{3}

B r^{-} C H_{3} O H

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