1.

Which of the following statement are correct?

Answer»

In gas phase, the basic CHARACTER of amine is `3^(@)gt2^(@)gt1^(@)`, Due to the `+I` effect `(R-)`, the availability of `LP overset(bar)e's` pm `N` INCREASES.
Inaqueous medium, the basic characterofamines is `Me_(2)NH gt ME_(3)N gt MeNH_(2) gt NH_(3)`.
In aqueoys medium, the ADDITION of protons increases of crowding and thus STRAINS setup, which being the highest in `3^(@)` amine decreases its basic character.
In aqueous medium, the ammonium ions in solution are stabilised not onlyby alkyl groups but also by `H`-bond donation to the solvent.

Solution :The order is `Me_2 NH gt MeNH _2 gt Me_3 N gt NH_3 (2^@ gt 1^@ gt 3^@ gt NH_3)` Sttemetns (a) , (c ) and (d) are correct.


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