1.

The increasing order of stability of the following free radicals is……….

Answer»

`(CH_(3))_(2) overset(.)(C )H lt (CH_(3))_(3) overset(.)( C) lt (C_(6)H_(5))_(2) overset(.)(C )H lt (C_(6)H_(5)) overset(.)(C )`
`(C_(6)H_(5))_(3) overset(.)(C ) lt (C_(6)H_(5))_(2) overset(.)(C )H lt (CH_(3))_(3) overset(.)(C )lt (CH_(3))_(2) overset(.)(C )H`
`(C_(6)H_(5))_(2) overset(.)(C )H lt (C_(6)H_(5))_(3) overset(.)( C) lt (CH_(3))_(3) overset(.)(C )lt (CH_(3))_(2) overset(.)(C )H`
`(CH_(3))_(2) overset(.)(C )H lt (CH_(3))_(3) overset(.)(C )lt (C_(6)H_(5))_(3) overset(.)(C ) lt (C_(6)H_(5))_(2) overset(.)(C )H`

Solution :`(CH_(3))_(2) CH lt (CH_(3))_(3) overset(.)(C )lt (C_(6)H_(5))_(2) overset(.)(C )H lt (C_(6)H_(5))_(2) overset(.)(C )`
`2^(@) lt 3^(@) lt "benzylic " 2^(@) lt "benzylic " 3^(@)`
Stability of free readicals `ul(1^(@)lt 2^(@)lt 3^(@) 4^(@) lt "benzylic"1^(@))lt` benzylic `2^(@)`
alkylic `lt` benzylic `3^(@)`


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