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Amines

Short Answer Type

111.

Write the structure of the Zwitter ion of sulphanilic acid.

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112.

What happens when n-pentyl nitrite reacts with aniline in the presence of HCl in ice-cold solution?

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113.

Convert aniline into chlorobenzene.

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114.

Write the structures of A and B.

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115.

What is the structure of compound A?
$2 comma space 4 space nitro space benzene rightwards arrow from left parenthesis ii right parenthesis space anisole to left parenthesis straight i right parenthesis space NaNO subscript 2 plus HCl space 0 minus 4 degree straight C of straight A$

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116. How does the formation of 2° and 3° amines can be avoided during the preparation of 1° amine by alkylation?

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117.

Compare the reactions of MeN and Ph₃N with BF_3.

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118.

Why is it preferred to use methanol (and not methyl iodide HCHO or HCOOH) for preparing C₆H₅N(CH₃)₂ from aniline ?

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119.
Sulphanilic acid is insoluble in water and organic solvents. Explain.

Sulphanilic acid is ionic in nature and therefore, it is insoluble in organic solvents. Its insolubility in water is typical of dipolar salts. Not all such salts dissolve in water.