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a. Why are alkanes inert ? b. Why th...

a. Why are alkanes inert ?
b. Why the (C----C) bond rather than (C----H) bond breaks when alkanes are pyrolysed ?
c. Why the combustion of alkanes does not occur at moderate temperature, although it is an exothermic process ?

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Verified by Experts

Since the bond dissociation energy of C-C bonds `(348 "kJ mol"^(-1))` is lower than bond dissociation energy of C-H bonds `(414 "kJ mol"^(-1))` , therefore , during cracking of alkanes , C-C bonds break more easily than C-H bonds.
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