1.

The correct increasing order of basic strength of following amines, C_(2)H_(5)NH_(2), NH_(3),(C_(2)H_(5))_(2)NH,C_(6)H_(5)NH_(2) in gaseous state is :

Answer»

`(C_(2)H_(5))_(2)NHLT C_(2)H_(5)NH_(2)LT NH_(3)lt C_(6)H_(5)NH_(2)`
`C_(6)H_(5)NH_(2) lt (C_(2)H_(5))_(2)NHlt C_(2)H_(5)NH_(2)ltNH_(3)`
`C_(6)H_(5)NH_(2)ltNH_(3)ltC_(2)H_(5)NH_(2)lt(C_(2)H_(5))_(2)NH`
`(C_(2)H_(5))_(2)NHltC_(2)H_(5)NH_(2)ltC_(6)H_(5)NH_(2)ltNH_(3)`.

Answer :C


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