Aniline cannot be prepared by -

Potassium salt of phthalimide treated with chlorobenzene followed by the hydrolysis aqueous NaOH solution

Hydrolysis of phenyl isocyanide with an acidic solution

Degradation of benzamide with bromine in alkaline Solution

Reduction of nitrobenzene with H 2 /Pd in ethanol

The correct order of the basic strength of methyl substituted amines in aqueous solution is:

CH 3 2 NH > CH 3 NH 2 > CH 3 3 N

CH 3 NH 2 > CH 3 2 NH > CH 3 3 N

CH 3 3 N > CH 3 NH 2 > CH 3 2 NH

CH 3 2 NH > CH 3 3 N > CH 3 NH 2

Give the incorrect order of basic strength

o − CH 3 OPhNH 2 > p − CH 3 OPHNH 2 > PhNH 2 > m − CH 3 OPhNH 2

p − CH 3 PhNH 2 > m − CH 3 PhNH 2 > PhNH 2 > o − CH 3 PhNH 2

PhNH 2 > m − NO 2 PhNH 2 > p − NO 2 PhNH 2 > O − NO 2 PhNH 2

Chemistry - Amines - Quiz-5

A given nitrogen-containing aromatic compound a reacts with Sn/HCl, followed by HNO₂ to give an unsatable compound B.B, on treament with phenol, forms a beautiful coloured compound C with the molecular formula C₁₂H₁₀N₂O. The structure of compound A is

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1
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2
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3
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4

The following reaction,

is known by the name:

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Friedel-Crafts reaction
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Perkins reaction
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Acetylation reaction
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Schotten-Baumann reaction

Which of the following will be most stable diazonium salt $R N_{2}^{+} X^{-}$ ?

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${CH}_{3} N_{2}^{+} X^{-}$
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$C_{6} H_{5} N_{2}^{+} X^{-}$
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${CH}_{3} {CH}_{2} N_{2}^{+} X^{-}$
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$C_{6} H_{5} {CH}_{2} N_{2}^{+} X^{-}$

In a reaction of aniline a coloured product C was obtained.

The structure of C would be

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()
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()
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()
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()

Which one of the following is an amine hormone ?

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Thyroxine
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Oxypurin
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Insulin
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Progesterone

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

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III<I<II
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III<II<I
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II<I<III
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II<III<I

Nitration of aniline in strong acidic medium also gives m-nitroaniline because -

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In spite of substituents nitro group always goes to only m-position
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In electrophilic substitution reactions amino group is meta directive
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In absence of substituents nitro group always goes to only m-position
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In acidic (strong) medium aniline is present as anilinium ion

A nitro-compounds among the following that does not react with nitrous acid is--

The correct statement regarding the basicity of arylamines is -

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Arylamines are generally more basic than alkylamines because the lone-pair electrons of nitrogen are not delocalized by interaction with the aromatic ring $π$ -electron system
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Arylamines are generally more basic than alkylamines because of aryl group +I effect
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Arylamines are generally more basic than alkylamines because the nitrogen atom in arylamines is sp-hybridized
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Arylamines are generally less basic than alkylamines because the nitrogen lone-pair electrons are delocalized by interaction with the aromatic ring $π$ -electron system.

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Practice Chemistry Quiz Questions and Answers

0:0:1

Practice Chemistry Quiz Questions and Answers

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