1.

Define cracking ?

Answer»

Solution :The thermal DECOMPOSITION of higher hydrocarbons into lower hydrocarbons in presence or ABSENCE of a catalyst is called CRACKING. For example .
`underset"HEXANE"(C_6H_14) underset"6-7 ATM"overset"773 K"to ubrace(C_6H_12+H_2)_("Hexane" "" "Hydrogen")+ubrace(C_4H_8 + C_2H_6)_("Butene" " " "Ethane")+ubrace(C_3H_6+C_2H_4+CH_4)_("Propene" " " "Ethene" " " "Methane")`


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