1.

Explain reactivity of alkene towards electrophilic.

Answer»

Solution :In alkene, carbon-carbon has weak `pi`-bond.

Electrons of `pi`-bonds shows weak dynamic electrons. This type of `pi`-electrons SOURCE is present in alkene.
So such type of reactant and compounds attack on `pi`-bond and alkene and break `pi`-bond easily and forms compounds having single bond. So alkane compounds easily GIVES addition reaction.
`pi`-bond because alkene is more reactive and LESS STABLE than alkanes.
So, strength of C-C in alkane (bond ethalpy `384 kJ mol^(-1)`), is less then strength of C-C in alkene (bond ENTHALPY 681 kJ/mol).


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