Amines Test

Result

Amines Test - 46

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Weekly Quiz Competition

Question 1
1 / -0

Ethyl nitrite on reduction with $$Sn/HCI$$ gives:

A
$$C_2H_5NH_2+HNO_2$$

B
$$C_2H_5NH_2+H_2O$$

C
$$C_2H_5OH+NH_4OH$$

D
$$C_2H_5OH+NaNO_2$$

Solution
Question 2
1 / -0

Ethyl isocyanide on reduction with sodium and alcohol gives:

A
ethylamine

B
propylamine

C
dimethylamine

D
ethyl methylamine

Solution

Ethylamine possesses two hydrogen atoms that can form hydrogen bonds wheras diethylamine having only one hydrogen atom is capable of forming only one hydrogen bond.
Question 3
1 / -0

An orange dye p-hydroxy azobenzene can be synthesized from benzene diazonium chloride by

A
Sandmeyer reaction

B
Gomberg reaction

C
Coupling reaction

D
Gattermann reaction

E
Etard reaction

Solution

This is known as coupling reaction
Question 4
1 / -0

Among the following, the strongest base is

A
$$C_{6}H_{5}NH_{2}$$

B
$$p-NO_{2}-C_{6}H_{4}NH_{2}$$

C
$$p-CH_{2} - C_{6}H_{4}NH_{2}$$

D
$$C_{6}H_{5}CH_{2}NH_{2}$$

Solution

d>a>b>c , $$EWG (-NO_2)$$ decreases basicity.
Question 5
1 / -0

Which of the following is the strongest base?

A

B

C

D

Solution

Answeer is D as it will donate the lone pair easily.
Question 6
1 / -0

Which of the following is $$ 1^0 $$ amine

A
Ethylene diamine

B
Dimethyl amine

C
Trimethyl amine

D
N-methyl aniline

Solution

in ethylene diamine here both amine are bond with different methyl group so this is $$1^0$$ amine
A is correct answer
Question 7
1 / -0

The basicity order of $$I, II$$ and $$III$$ is

A
$$III > I > II$$

B
$$I > II > III$$

C
$$III > II > I$$

D
$$II > III > I$$

Solution

The basicity order will depend on the groups attached with 'N' other than benzene ring. In (III) $$-C_2H_5$$ increases the basicity order due to its +I effect. Therefore (III) has highest basicity, (II) has lowest basicity due to -I effect of $$-COCH_3$$ group.

Hence the correct order is $$(III)>(I)>(II)$$.

Option A.
Question 8
1 / -0

Consider the following compounds, What is the correct order of basicity of the above compounds?

A
$$I > II > IIl$$

B
$$III > I > II$$

C
$$III > II > I$$

D
$$I > III > II$$

Solution

III>II>I
Question 9
1 / -0

Which of the following is least basic?

A
Aniline

B
$$p-Methylaniline$$

C
Diphenylamine

D
Triphenylamine

Solution

Triphenyl amine is least basic as it has 3 phenyl groups thus giving more chances of electron conjugation, and -M effect.
Question 10
1 / -0

Compounds containing both amino and COOH groups are known as

A
Diamines

B
unknown

C
Amino acids

D
Enzymes

Solution

An amino acid contains both an amino group, -NH2, and a carboxylic acid group, -COOH, in the same molecule. As with all acids the carbon chain is numbered so that the carbon in the -COOH group is counted as number 1.