Amines Test

Result

Amines Test - 65

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Weekly Quiz Competition

Question 1
1 / -0

What is the decreasing order of basicity of pri-, sec-, and tert-, ethyl amines and $$NH_3$$ ?

A
$$NH_3$$ > $$C_2H_5NH_2$$ > $$(C_2H_5)_2NH$$ > $$(C_2H_5)_3N$$

B
$$(C_2H_5)_3N$$ > $$(C_2H_5)_2NH$$ > $$C_2H_5NH_2$$ > $$NH_3$$

C
$$(C_2H_5)_2NH$$ > $$C_2H_5NH_2$$ > $$(C_2H_5)_3N$$ > $$NH_3$$

D
$$(C_2H_5)_2NH$$ > $$C_2H_5NH_2$$ > $$NH_3$$ > $$(C_2H_5)_3N$$
Question 2
1 / -0

A $$[Cr(H_2O)_6]^{3+}$$ typically absorbs at around 574 nm. It is allowed to react with ammonia to form a new complex $$[Cr(NH_3)_6]^{3+}$$ that should have absorption at

A
800 nm

B
462 nm

C
620 nm

D
574 nm
Question 3
1 / -0

Which of the following compounds has the most basic nitrogen?

A
$$a$$

B
$$b$$

C
$$c$$

D
$$d$$

Solution
Question 4
1 / -0

Which of the following compound has highest boiling point ?

A

B

C

D

Solution

Primary amines form stronger H-bonds than secondary amines.
Due to H-bonding amines have higher boiling point than alkanes.
Question 5
1 / -0

2) $$H_3C-CH_2-NH_2$$
3) $$(CH_3)_2NH$$
Write basicity order of the above

A
1>2>3

B
3>2>1

C
1>3>2

D
2>3>1

Solution
Question 6
1 / -0

Compare basic strength:

A
$$a > b > c$$

B
$$b > a > c$$

C
$$c > a > b$$

D
$$c > b > a$$
Question 7
1 / -0

Arrange the following in the decreasing order of their $$pK_{a}$$ value:
I . $$CH_{2} = CHCH_{2}NH_{2}$$
II .$$ CH_{3}CH_{2}CH_{2}NH_{2}$$
III . $$CH \equiv CCH_{2}NH_{2}$$

A
$$III<II<I$$

B
$$II>I>III$$

C
$$III>II>I$$

D
$$II>III>I$$
Question 8
1 / -0

Among the following which amine can be prepared by Gabriel phthalimide method?

A
$$C_6H_5NH_2$$

B
$$CH_3 - NH - CH_2CH_3$$

C

D

Solution
Question 9
1 / -0

Arrange the given compounds in order of their basic strength.
(i) Histidine
(ii) Lysine
(iii) Arginine

A
i>ii>iii

B
ii>i>iii

C
iii>ii>i

D
i>iii>ii
Question 10
1 / -0

Which of the following coupling reaction lakes place most readily than other

A

B

C

D

Solution