Why the order of boiling of isomeric amines are Primary > Sec

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 Multiple Choice QuestionsShort Answer Type

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121.

Why the order of boiling of isomeric amines are Primary > Secondary > Tertiary ?


Primary amines and secondary amines are engaged in intermolecular association due to hydrogen bonding between the nitrogen of one and hydrogen of another molecule. This intermolecular association is more in primary amines than in secondary amines as there are two hydrogen atoms available for hydrogen bond formation in it. Tertiary amines do not have intermolecular association due to the absence of hydrogen atom available for hydrogen bond formation. Therefore, the order of boiling points of isomeric amines is as.
Primary > Secondary > Tertiary

 

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122. Give industrial application of diazotization.
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123.

Write the products of the reaction of

Also write their IUPAC names.

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124.

Giving a reason, arrange the following amines in order of decreasing basicity.

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125. Write the conjugate acid and conjugate base of:


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126.

Complete the reaction:
CH3NH2 + H2O →

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127.

Complete the reaction:
CH3CHNH2 + HCl(g) →

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128.

How will you purify aniline containing non-basic impurities ?

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 Multiple Choice QuestionsLong Answer Type

129.

Write the structure of the isomeric aromatic amines with formula C7H9N and give their IUPAC names.

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 Multiple Choice QuestionsShort Answer Type

130. Write chemical equations for the following reactions:
(i) Reaction of ethanolic NH3 with C2H5Cl.

(ii) Ammonolysis of benzyl chloride and reaction of amine so formed with two moles of CH3l.
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