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Arrange the following : (i) C(6)H(5)ov...

Arrange the following :
(i) `C_(6)H_(5)overset(*)(C)HCH_(3), C_(6)Hoverset(*)(C)HCH = CH_(2), C_(6)H_(5)CH_(2)overset(*)(C)H_(2), C_(6)H_(5)overset(*)(C)(CH_(3))_(2)`
in order of increasing stability.
(ii) `CH_(3)CH_(2)^(+), C_(6)H_(5)CH_(2)^(+), (CH_(3))_(3)C^(+), CH_(2) =CHCH_(2)^(+)`
in order of decreasing stability.
(iii) `HC -= C^(-), CH_(2) = CH^(-), CH_(3)CH_(2)^(-), CH_(3)^(-), (CH_(3))_(2)CH^(-), C_(6)H_(5)CH_(2)^(-)`
in order of increasing stability.

Text Solution

Verified by Experts

`(i) C_(6)H_(5)CH_(2)overset(*)(C)H_(2) lt C_(6)H_(5)overset(*)(C)HCH_(3) lt C_(6)H_(5)overset(*)(C)(CH_(3))_(2) lt C_(6)H_(5)overset(*)(C)H - CH = CH_(2)`.
(ii) `(CH_(3))_(3)C^(+) gt C_(6)H_(5)CH_(2)^(+) gt CH_(2) = CHCH_(2)^(+) gt CH_(3)CH_(2)^(+)`.
(iii) `(CH_(3))_(2)CH^(-) lt CH_(3)CH_(2)^(-) lt CH_(3)^(-) lt CH_(2) = CH^(-) lt C_(6)H_(5)CH_(2)^(-) lt HC -= C^(-)`.
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