Question

Intext : What happens when Br2 is added to (i) C2H4 (ii) C2H2

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What happens when Br2 is added to (i) C2H4 (ii) C2H2

Answer

When Br2 is added to C2H4 (ethylene), the double bond of C2H4 breaks and forms a halogen derivative (1,2-dibromoethane) as shown below:

halogen derivative

When Br2 is added to C2H2 (acetylene), it undergoes an addition reaction and forms tetrabromoethane (C2H2Br4) as shown below:

tetrabromoethane

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