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Arrange the following in the decreasing order of basic strength: CH_(3)CH_(2)CH_(2)NH_(2), CH_(2) = CH- CH_(2)NH_(2) and CH -= - CH_(2) NH_(2) |
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Answer» Solution :The order of basic strength is : `CH_(3)CH_(2)CH_(2)NH_(2) gt CH_(2)=CH-CH_(2)NH_(2) gt CH= C CH_(2)NH_(2)` Alkyl group is electron RELEASING and STABILISES the CONJUGATE acid of PROPYL amine. Alkenyl and alkynyl groups connected to `-CH_(2)NH_(2)` are electron withdrawing group and destabilise the conjugate acid of `CH_(2)=CHCH_(2)NH_(2)` and `CH-=C CH_(2)NH_(2)`, HENCE they become weak base. |
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