Chemistry - Amines - Quiz-7

Nitroalkane is acidic only towards:

3. $NaOH$

0%

${Na}_{2} {CO}_{3}$
0%
2
0%

alcohol
0%

liquid ${NH}_{3}$

Primary, secondary, and tertiary amines may be separated by using:

0%

Ethanoyl chloride
0%

Diethyl oxalate
0%

Thionyl chloride
0%

None of the above

The name urea was given by:

0%

Wohler
0%

Berzelius
0%

Roulle
0%

Lemery

Urea when heated a white residue is formed. Its alkaline solution when treated with few drops of ${CuSO}_{4}$ solution gives:

0%

Red colour
0%

Violet colour
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Green colour
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Yellow colour

The diamide of carbonic acid is:

0%

acetamide
0%

formamide
0%

benzamide
0%

urea

The basic character of methylamines in vapour phase is:

0%

$3 ° > 2 ° > 1 ° > N H_{3}$
0%

$2 ° > 3 ° > 1 ° > {NH}_{3}$
0%

$1 ° > 2 ° > 3 ° > {NH}_{3}$
0%

None of these

Gabriel's phthalimide reaction is used to prepare:

0%

Primary amine
0%

Secondary amine
0%

Tertiary amine
0%

All of the above

Grignard reagent and acetyl chloride does not react with:

0%

${RNH}_{2}$
0%

$R_{2} NH$
0%

$R_{3} N$
0%

None of these

General formula of an amine is:

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$C_{n} H_{2 n + 1} N$
0%

$C_{n} H_{2 n + 2} N$
0%

$C_{n} H_{2 n + 3} N$
0%

$C_{n} H_{2 n} N$

The amine may contain:

0%

$- {NH}_{2} gp .$
0%

$N_{|}^{|} H$ gp.
0%

$- N_{|}^{|}$ gp.
0%

all of these

Primary amine and secondary amine are distinguished by:

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${Br}_{2} / KOH$
0%

HClO
0%

${HNO}_{2}$
0%

${NH}_{3}$

Which of the following is carbamide?

0%

${CH}_{3} {CONH}_{2}$
0%

${NH}_{2} {CONH}_{2}$
0%

${CH}_{2} ({NH}_{2}) {CONH}_{2}$
0%

$CO (OH) {NH}_{2}$

Reaction of primary amine with aldehydes gives:

0%

amide
0%

aldimine
0%

nitrile
0%

none of these

An amine reacts with $C_{6} H_{5} {SO}_{2} Cl$ and the product is soluble in alkali, amine is:

0%

$1 °$
0%

$2 °$
0%

$3 °$
0%

all of these

Which of the following will give a primary amine on hydrolysis?

0%

Nitroparaffin
0%

Alkyl cyanide
0%

Oxime
0%

Alkyl isocyanate

Mark the correct statement:

0%

Methyl amine is slightly acidic.
0%

Methyl amine is less basic than ammonia.
0%

Methyl amine is a stronger base than ammonia.
0%

Methyl amine forms salts with alkali.

Which one of the following amines will not react with ${HNO}_{2}$ acid to give nitrogen?

0%

${CH}_{3} {NH}_{2}$
0%

${CH}_{3} {CH}_{2} {NH}_{2}$
0%

${CH}_{3} - \underset{\underset{{CH}_{3}}{|}}{C} H - {NH}_{2}$
0%

What is decreasing order of basicity of p-, s-, t-ethyl amines and ${NH}_{3}$ in aqueous medium ?

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NH₃>C₂H₅NH₂>(C₂H₅)₂NH>(C₂H₅)₃N
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(C₂H₅)₃N>(C₂H₅)₂NH>C₂H₅NH₂>NH₃
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(C₂H₅)₂NH>C₂H₅NH₂>NH₃>(C₂H₅)₃N
0%

(C₂H₅)₂NH>(C₂H₅)₃N>C₂H₅NH₂>NH₃

Urea on heating with ethanol gives:

0%

Urethane
0%

Urea alcohol
0%

Ureides
0%

None of the above

Alkyl nitrite on reduction with Sn/HCl gives:

0%

Alcohol
0%

Hydroxylamine
0%

Both (a) and (b)
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Hydrazine

Which of the following compounds is expected to be the most basic?

0%

Aniline
0%

Ethylamine
0%

Hydroxylamine
0%

Methylamine

The action of nitrous acid on a primary amine gives:

0%

nitroalkane
0%

alkyl nitrite
0%

alcohol
0%

secondary amine

The reaction,

${CH}_{3} CN + 4 H \overset{Na / C_{2} H_{5} OH}{\to} {CH}_{3} {CH}_{2} {NH}_{2}$ is called:

0%

Sabatier reaction
0%

None of the above
0%

Hofmann's bromamide reaction
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Mendius reaction

A colourless organic compound gave brisk effervescence with a mixture of ${NaNO}_{2}$ and dil. HCl. It could be:

0%

glucose
0%

oxalic acid
0%

urea
0%

benzoic acid

Identify X in the sequence,

X $\overset{{HNO}_{2}}{\to}$ C₃H₈O $\to_{H_{2} {SO}_{4}}^{K_{2} {Cr}_{2} O_{7}}$ C₃H₆O₂

0%

CH₃-NH-CH₂-CH₃
0%

CH₃-CH₂-CH₂-NH₂
0%

(CH₃)₃N
0%

none of the above

Aliphatic amines are ......basic than ${NH}_{3}$ but aromatic amines are .....basic than ${NH}_{3}$

0%

more, less
0%

less, more
0%

both (a) and (b)
0%

none of these

Aliphatic amines are soluble in water because:

0%

they are basic.
0%

they are amino compounds.
0%

they are lighter than water.
0%

of formation of hydrogen bonds with water.

The general formula of quaternary ammonium compound is:

0%

R-NH₂
0%

R₃N
0%

[R₄N]⁺X^-
0%

NH₄X

Amines have:

0%

garlic odour
0%

fishy odour
0%

jasmine odour
0%

bitter almonds odour

Aqueous solution of urea is:

0%

Acidic
0%

Alkaline
0%

Almost neutral
0%

Amphoteric

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Practice Chemistry Quiz Questions and Answers

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Practice Chemistry Quiz Questions and Answers

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