1.

In the chorination of isobutane (2-methyl propane) the major product is

Answer»

`CH_(3)CH_(2)CH_(2)Cl`
`CH_(3)CH(CH_(3))CH_(2)Cl`
`CH_(3)CH_(2)CH(CH_(3))Cl`
`(CH_(3))_(3)C Cl`

Solution :The rate of substraction of hydrogen follows the order `3^(@) H gt 2^(@) gt H gt 1^(@)`H, which parallels the STABILITY of free radicals. In otherwords , the order of reactivity OFH is `3^(@) H gt 2^(@) gt 1^(@)H`.
`(CH_(3))_(2)CHCH_(3) +Cl_(2) overset(U.V."LIGHT") to (CH_(3))_(2)C ClCH_(3)+HCL`


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