Define cracking.
The thermal decomposition of higher hydrocarbons into lower hydrocarbons in the presence or absence of a catalyst is called cracking.
What is alternation effect?
n-alkanes with an even number of carbon atoms have much higher melting points than the next lower n-alkane with an odd number of carbon atoms.
During the pyrolysis of alkanes C-C bonds break in preference to C-H bond. Why?
The bond dissociation energy of C-C bond is less than that of C-H bond. Hence, C-C bonds break in preference to C-H bond.
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