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rArr Arrange the following nitrogen cont...

`rArr` Arrange the following nitrogen containing compounds in decreasing order of basicity (Question No.126-130).

A

`PgtQgtRgtS`

B

`QgtPgtRgtS`

C

`QgtPgtSgtR`

D

`SgtPgtQgtR`

Text Solution

Verified by Experts

The correct Answer is:
B
Q is most basic as it is aliphatic amine, P is more basic than R and S as `lp e^(-)` of P is delocalise.
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Knowledge Check

  • Arrange the following compounds in decreasing order of basicity :

    A
    `PgtQgtRgtS`
    B
    `QgtPgtRgtS`
    C
    `RgtSgtQgtP`
    D
    `QgtPgtSgtR`

  • Arrange the following compounds in increasing order of basicity :

    A
    `SgtRgtQgtP`
    B
    `SgtRgtPgtQ`
    C
    `PgtQgtRgtS`
    D
    `RgtQgtPgtS`

  • Arrange the following compounds in the decreasing order of acidity.

    A
    `H_2O gt HC-=CH gt ROH`
    B
    `H_2O gt ROH gt HC-=CH`
    C
    `HC-=CH gt ROH gt H_2O`
    D
    `HC-=CH gt H_2O . ROH`

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