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Arrange the following in increasing orde...

Arrange the following in increasing order of basic strength:
Aniline,p-Nitroaniline and p-toluidine

Text Solution

Verified by Experts

`III lt IV lt I lt II` or `II gt IV gt III`
(II) (`+I` effect of two `Me` groups of `N` atom and `Me` group ar `p` position (`+ I` and `H.C` effects) (highest basic).
(I) `+ I` and `H.C` effects of `(Me)` group at `p` position.
(IV) (Standard)(Aniline)
(III) `-I` and `-R` effect of `(-NO_2)` group at `p` position.
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(a) Account for the following : (i) Direct nitration of aniline yields significant amount of meta derivative. (ii) Primary aromatic cannot be prepared by Gabriel phthalimide synthesis. (b) Carry out the following conversions : (i) Ethanoic acid into methanamine. (ii) Aniline to p-Bromoniline. (c) Arrange the following in increasing order of basic strength : Aniline, p-nitroaniline and p-toludine.

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Knowledge Check

  • Arrange the following in increasing order of basicity.

    A
    `I lt II lt III`
    B
    `III lt I lt II`
    C
    `III lt II lt I`
    D
    `II lt III lt I`
  • Arrange the following in increasing order of basicity :

    A
    `S lt Q lt R lt P`
    B
    `S lt Q lt P lt R`
    C
    `S lt R lt P lt Q`
    D
    `P lt Q lt R lt S`
  • Arrange the following compounds in increasing order of basicity :

    A
    `S gt R gt Q gt P`
    B
    `S gt R gt P gt Q`
    C
    `P gt Q gt R gt S`
    D
    `R gt Q gt P gt S`
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