Amines Test

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Amines Test - 80

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Weekly Quiz Competition

Question 1
1 / -0

Identify the product in following order
$$ 3,4,5-Tribromoaniline\xrightarrow[(ii)H_{3}PO_{2}]{(i)diazotizaton}? $$

A
3,4,5- Tribromobenzene

B
1,2,3-- Tribromobenzene

C
2,4,6-- Tribromobenzene

D
3,4,5-- Tribromo nitro benzene

E
3,4,5-- Tribromo phenol

Solution
Question 2
1 / -0

The diazonium salts are the reaction product in presence of excess of mineral acid with nitrous acid and

A
Primary aliphatic amine

B
Secondary aromatic amine

C
Primary aromatic amine

D
Tertiary alipathic amine

Solution

The diazonium salts are the reaction product in presence of excess of mineral acid with nitrous acid and primary aromatic amine

Hence C is correct answer
Question 3
1 / -0

Which statement is not correct ?

A
Amines from hydrogen bond

B
Ethyl amine has higher boiling point than propane

C
Methyl amine is more basic than ammonia

D
Diamethyl amine is less basic than methyl amine

Solution

In methyl amine only one electron releasing group is present but in dimethyl amine two electron releasing groups are present which increase the basicity higher in dienethyl amine.
Question 4
1 / -0

In this reaction $$ C_{6}H_5{}NH_{2}+HCl+NaNO_{2}\rightarrow X $$
product X is

A
Aniline hydrochloride

B
Nitro aniline

C
Benzenediazonium chloride

D
None of these

Solution

$$C_{6}H_{5}NH_{2} + HCl + NaNO_{2} \rightarrow C_{6} H_{5} N_{2} Cl$$
Benzenediazonium chloride

Option C is correct.
Question 5
1 / -0

Diazo-coupling is useful to prepare some:

A
Pesticides

B
Proteins

C
Dyes

D
Vitamins

Solution

Diazonium salts are important synthetic intermediates that can undergo coupling reactions to form azo dyes.
The azo compounds are coloured due to an extended conjugate system involving the double bonds of both the aromatic rings through −N=N− double bond.

Hence, option $$C$$ is correct.
Question 6
1 / -0

Diazo-coupling is use ful to prepare some

A
Dyes

B
Proteins

C
Pesticides

D
Vitamins

Solution

Diazo-coupling is useful to prepare some dyes.
Option B
Question 7
1 / -0

Nitrobenzene on reduction with $$Zn/NaOH$$ gives:

A
$${C}_{6}{H}_{5}-N=N-{C}_{6}{H}_{5}$$

B
$${C}_{6}{H}_{5}-NH-NH-{C}_{6}{H}_{5}$$

C
$${C}_{6}{H}_{5}NHOH$$

D
$$C_6 H_5 - \underset{O}{\underset{\downarrow}{N}} = N - C_6H_5$$

Solution

Nitrobenzene on reduction with $$Zn/NaOH$$ gives Azobenzene.
Question 8
1 / -0

Which of the following is most basic?

A
$$CH_3NH_2$$

B
$$(CH_3)_2NH$$

C
$$(CH_3)_3N$$

D
$$C_6H_5NH_2$$
Question 9
1 / -0

$$C_3H_9N$$ does not show

A
Primary amine

B
Quaternary salt

C
Tertiary amine

D
Secondary amine
Question 10
1 / -0

$$C_3N_9N$$ cannot represent

A
$$1^o$$ amine

B
$$2^o$$ amine

C
$$3^o$$ amine

D
quaternary ammonium salt

Solution

Quaternary ammonium salt, as it carries a positive charge over nitrogen e.g.$$(CH_3)_4N^+Cl^-$$
Hence option (D) is correct.

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Amines Test - 80

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Amines Test - 80

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Question 1

3,4,5- Tribromobenzene

1,2,3-- Tribromobenzene

2,4,6-- Tribromobenzene

3,4,5-- Tribromo nitro benzene

3,4,5-- Tribromo phenol

Solution

Question 2

Primary aliphatic amine

Secondary aromatic amine

Primary aromatic amine

Tertiary alipathic amine

Solution

Question 3

Amines from hydrogen bond

Ethyl amine has higher boiling point than propane

Methyl amine is more basic than ammonia

Diamethyl amine is less basic than methyl amine

Solution

Question 4

Aniline hydrochloride

Nitro aniline

Benzenediazonium chloride

None of these

Solution

Question 5

Pesticides

Proteins

Dyes

Vitamins

Solution

Question 6

Dyes

Proteins

Pesticides

Vitamins

Solution

Question 7

$${C}_{6}{H}_{5}-N=N-{C}_{6}{H}_{5}$$

$${C}_{6}{H}_{5}-NH-NH-{C}_{6}{H}_{5}$$

$${C}_{6}{H}_{5}NHOH$$

$$C_6 H_5 - \underset{O}{\underset{\downarrow}{N}} = N - C_6H_5$$

Solution

Question 8

$$CH_3NH_2$$

$$(CH_3)_2NH$$

$$(CH_3)_3N$$

$$C_6H_5NH_2$$

Question 9

Primary amine

Quaternary salt

Tertiary amine

Secondary amine

Question 10

$$1^o$$ amine

$$2^o$$ amine

$$3^o$$ amine

quaternary ammonium salt

Solution

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