Arrange the following in correct order o...

Arrange the following in correct order of basicity

`I gt II gt III`

`III gt II gt I`

`II gt I gt III`

`I gt III gt II`

Text Solution

Verified by Experts

Hybridisation of N-atom in the compounds given below are `sp^(2), sp^(3)` and `sp^(2)` respectively.

Greater the s-character, more will be electronegativity of N-atom and lesser will be its basicity on this basis, I is less basic than II.
Conjugation If lone pairs of electrons of N are involved in conjugation causes decrease in basicity of compound due to lesser availability of ione pair for donation to show basic nature.

Lone pair involved in formation of aromatic sextet of `6pi`-electron (least basic).

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Arrange the following in increasing order of basicity :

`SltQltRltP`

`SltQltPltR`

`SltRltPltQ`

`PltQltRltS`

Among the following the correct order of basicity is

`NH_(2)^(-) gt OH^(-) gt RO^(-) gt RCOO^(-)`

`NH_(2)^(-) gt RO^(-) gt OH^(-) gt RCOO^(-)`

`RCOO^(-) gt NH_(2)^(-) gt RO^(-) gt OH^(-)`

`RCOO^(-) gt RO^(-) gt NH_(2)^(-) gt OH^(-)`

Arrange the following in increasing order of basicity.

`IltIIltIII`

`IIIltIltII`

`IIIltIIltI`

`IIltIIIltI`