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  • Help me answer: The correct increasing order of basic strength for the following compounds is :

The correct increasing order of basic strength for the following compounds is :

  • Option 1)

    II < III < I

  • Option 2)

    III < I < II

  • Option 3)

    III < II < I

  • Option 4)

    II < I < III

 

Answers (2)

As we learnt in

Basicity of Aromatic Amines -

The unshared pair of electrons at the nitrogen atom is in resonance with the benzene ring and hence not fully available for donation as in the case of aniline.

-

e- donating group increases basicity                e- withdrawing group decreases basicity

 


Option 1)

II < III < I

This option is incorrect

Option 2)

III < I < II

This option is incorrect

Option 3)

III < II < I

This option is incorrect

Option 4)

II < I < III

This option is correct

Posted by

Vakul

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Option 2 is the answer because the +I EFFECT increase the electron density on nitrogen in I structure

-I effect decreases the electron density in II structure

Posted by

karpagavalli

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