Amines Test

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Amines Test - 20

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Weekly Quiz Competition

Question 1
1 / -0

Which compound is a secondary alcohol?

A
Butan-1-ol

B
Butan-2-ol

C
Isobutyl alcohol

D
2-Methylpropan-2-ol

Solution

Butan-2-ol is a secondary alcohol. The $$-OH$$ group is attached to a $$C$$ atom which is attached to 2 other $$C$$ atoms and 1 $$H$$ atom.
Question 2
1 / -0

Alkyl and aryl amines are prepared using which of the following reducing agent.

A
$$LiAlH_4$$

B
$$H_2$$

C
$$NaBH_4$$

D
Both A and B

Solution

Alkyl and aryl cyanides (nitriles) can be reduced to their corresponding primary amines using lithium aluminium hydride ($$LiAlH_4$$) or catalytic hydrogenation.
Hence option A is correct.
Question 3
1 / -0

The conversion of primary aromatic amines into diazonium salts is known as ___________.

A
decarboxylation

B
diazotization

C
ammonolysis

D
none of these

Solution

$$ 3 ksw + fe^{3+} \rightarrow fe(sw)_{3}+3k+ $$
red colour
Question 4
1 / -0

Structure containing an amine group is :

A
$$\displaystyle { CH }_{ 3 }-{ CH }_{ 2 }-{ CH }_{ 3 }$$

B
$$\displaystyle CH_3-\underset {\displaystyle \underset {\displaystyle O}{ ||}}{C}-OH$$

C
$$\displaystyle { CH }_{ 3 }-O-{ C }_{ 3 }{ H }_{ 7 }$$

D
$$\displaystyle CH_3-\underset {\displaystyle \underset {\displaystyle O}{ ||}}{C}-CH_3$$

E
$$\displaystyle CH_3 - CH_2- NH_2$$

Solution

Structure containing an amine group is $$\displaystyle CH_3CH_2NH_2$$. It is the structure of ethylamine. It is organic derivative of ammonia in which one H atom attached to nitrogen is replaced by one ethyl group.
Question 5
1 / -0

$$CH_3CH_2CH_2CN+LiAlH_4\rightarrow $$
Which of the following amine is formed in the above reaction :

A
$$CH_3CH_2CH_2CH_2NH_2$$

B
$$CH_3CH_2CH_2NH_2$$

C
$$CH_3CH_2NH_2$$

D
$$CH_3CH_2CH_2CH(NH_2)_2$$

Solution

$$CH_3CH_2CH_2CN+LiAlH_4\rightarrow CH_3CH_2CH_2CH_2NH_2$$
Hence option B is correct.
Question 6
1 / -0

Aromatic amines are generally:

A
pleasant in smell.

B
toxic in nature.

C
low melting solids.

D
none of these.

Solution

Aromatic amines are
1) Less basic
2) Lone pair of N involve in ring resonance
3) are toxic in nature.
Question 7
1 / -0

$$R-CN+2H_2\overset{Pd}{\rightarrow}R-CH_2NH_2$$ is :

A
Oxidation Reaction

B
Reduction reaction

C
Combustion

D
None

Solution

Alkyl nitriles are reduced using A metal like palladium, platinum or nicke as a catalyst.
So,
Hence option A is correct.
Question 8
1 / -0

Which of the folllowing catalysts are used in the preparation amines by the reduction of isonitriles:

A
Platinum

B
Palladium

C
Nickel

D
All of the above

Solution

The carbon-nitrogen triple bond in a nitrile can also be reduced by reaction with hydrogen gas in the presence of a variety of metal catalysts like palladium, platinum or nickel. Hence option D is correct.
Question 9
1 / -0

Reduction of alkyl nitriles in presence of $$LiAlH_4$$ Gives :

A
Alkyl Amines

B
Alkyl Amides

C
Alkyl Nitro compounds

D
Alkyl Iso cyanides

Solution

Reduction of alkyl nitriles in presence of $$LiAlH_4$$ Gives Alkyl Amines. Alkyl and aryl cyanides (nitriles) can be reduce by $$LiAlH_4$$) or catalytic hydrogenation.
Hence option A is correct.
Question 10
1 / -0

Which of the following is the product of the reaction?

A
$$C_6H_5CH_2NH_2$$

B
$$C_5H_5CH_2NH_2$$

C
$$C_6H_4CH_2NH_2$$

D
$$C_4H_5CH_2NH_2$$

Solution

Cyano $$C_6H_5CH_2NH_2$$benzene when reacts with $$LiAlH_4$$ it forms benzyl amine($$C_6H_5CH_2NH_2$$).
Hence option A is correct.

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Re-Attempt Weekly Quiz Competition

Amines Test - 20

Result

Amines Test - 20

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SHARING IS CARING

Question 1

Butan-1-ol

Butan-2-ol

Isobutyl alcohol

2-Methylpropan-2-ol

Solution

Question 2

$$LiAlH_4$$

$$H_2$$

$$NaBH_4$$

Both A and B

Solution

Question 3

decarboxylation

diazotization

ammonolysis

none of these

Solution

Question 4

$$\displaystyle { CH }_{ 3 }-{ CH }_{ 2 }-{ CH }_{ 3 }$$

$$\displaystyle CH_3-\underset {\displaystyle \underset {\displaystyle O}{ ||}}{C}-OH$$

$$\displaystyle { CH }_{ 3 }-O-{ C }_{ 3 }{ H }_{ 7 }$$

$$\displaystyle CH_3-\underset {\displaystyle \underset {\displaystyle O}{ ||}}{C}-CH_3$$

$$\displaystyle CH_3 - CH_2- NH_2$$

Solution

Question 5

$$CH_3CH_2CH_2CH_2NH_2$$

$$CH_3CH_2CH_2NH_2$$

$$CH_3CH_2NH_2$$

$$CH_3CH_2CH_2CH(NH_2)_2$$

Solution

Question 6

pleasant in smell.

toxic in nature.

low melting solids.

none of these.

Solution

Question 7

Oxidation Reaction

Reduction reaction

Combustion

None

Solution

Question 8

Platinum

Palladium

Nickel

All of the above

Solution

Question 9

Alkyl Amines

Alkyl Amides

Alkyl Nitro compounds

Alkyl Iso cyanides

Solution

Question 10

$$C_6H_5CH_2NH_2$$

$$C_5H_5CH_2NH_2$$

$$C_6H_4CH_2NH_2$$

$$C_4H_5CH_2NH_2$$

Solution

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