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Amines

Short Answer Type

81.

What is the correct order of decreasing boiling point of the following compounds?
CH₃ CH₂ CH₂ OH, CH₃ CH₂ CH₂ NH₂, CH₃ CH₂OCH₃, CH₃ CH₂ NHCH₃

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82. Why is ethylamine has lower boiling point than ethyl alcohol?

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83.

Describe the hybridization and shape of (CH₃)₃N.

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84.

Why do quaternary ammonium salts having four different group attached to nitrogen show optical activity?

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85. Arrange the following in decreasing basicity.

CH₃CH₂NH₂, CH₂ = CH—NH₂, (CH₃CH₂)₂NH

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86. What is the evidence of basic nature of aniline?

Aniline (C₆H₅NH₂) forms a salt with a concentrated hydrochloric acid, which is an evidence of the basic nature of aniline.

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87. Write the reaction between aniline and benzaldehyde.

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88.

Write the structure of the products obtained in the following reactions:

$left parenthesis CH subscript 3 right parenthesis subscript 2 NH space plus space HNO subscript 3 space rightwards arrow$

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89.

Write the structure of the products obtained in the following reactions:

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90.

Give the structure and IUPAC name of the product obtained when formic acid reacts with dimethylamine .

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