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CH3 CONH2 is a weaker base than CH3 CH2...

`CH_3 CONH_2` is a weaker base than `CH_3 CH_2 NH_2`.

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`CH_3 - overset(O ) overset(||)C-` group in `CH_3 CONH_2`, withdraws electron pair on the nitrogen through resonance.

As a result, electron density on the N-atom in acetamide decreases. On the other hand, in ethylamine, due to +I effect of the ethyl group, electron density on the N-atom increases. Consequently, `CH_3 CONH_2` is a weaker base than `CH_3 CH_2 NH_2`.
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KALYANI PUBLICATION-ORGANIC COMPOUNDS CONTAINING NITROGEN-EXERCISE (PART-II DESCRIPTIVE QUESTIONS- VERY SHORT ANSWER QUESTIONS )
  1. Of methylamine and aniline, which is a stronger base and why?

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  2. Why aniline is weaker base than cyclohexylamine?

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  3. CH3 CONH2 is a weaker base than CH3 CH2 NH2.

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  4. How is the basic strength of aromatic amines affected by the presence ...

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  5. Identify A and B in the following sequence : CH3COOC2 H5 overset(NH...

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  6. Why is carbon-nitrogen bond length in aromatic amines shorter than in ...

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  7. How is phenylaminomethane obtained from phenylnitrile ?

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  8. How is aminoethane obtained from ethanal ?

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  9. Electrophilic substitution in case of aromatic amines takes place more...

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  10. How is aniline obtained from benzoic acid ?

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  11. Illustrate the following with an example : Acetylation reaction.

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  12. Give chemical tests to distinguish between the following| pair of comp...

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  13. State the reaction taking place when : Bromine water is added to the a...

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  14. Give a chemical test to distinguish between aniline and N-methylanilin...

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  15. How is m-nitroaniline obtained from nitrobenzene?

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  16. Direct nitration of aniline is not carried out. Explain why?

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  17. Name one reagent used for separation of primary, secondary and tert-am...

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  18. Give one example of a zwitterion.

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  19. Mention the chief use of quaternary ammonium salts derived from long c...

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  20. Mention two important uses of sulfanilic acid.

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