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1
MHT CET 2025 25th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following amines has lowest $\mathrm{pK}_b$ value?

A
$\mathrm{C}_2 \mathrm{H}_5 \mathrm{NH}_2$
B
$\left(\mathrm{CH}_3\right)_3 \mathrm{~N}$
C
$\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2$
D
$\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{NH}_2$
2
MHT CET 2025 23rd April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify correct decreasing order of basic strength of amines from following.

A

$\left(\mathrm{CH}_3\right)_3 \mathrm{~N}>\left(\mathrm{CH}_3\right)_2 \mathrm{NH}>\mathrm{CH}_3 \mathrm{NH}_2$

B

$\left(\mathrm{CH}_3\right)_2 \mathrm{NH}>\mathrm{CH}_3 \mathrm{NH}_2>\left(\mathrm{CH}_3\right)_3 \mathrm{~N}$

C

$\left(\mathrm{CH}_3\right)_2 \mathrm{NH}>\left(\mathrm{CH}_3\right)_3 \mathrm{~N}>\mathrm{CH}_3 \mathrm{NH}_2$

D

$\mathrm{CH}_3 \mathrm{NH}_2>\left(\mathrm{CH}_3\right)_2 \mathrm{NH}>\left(\mathrm{CH}_3\right)_3 \mathrm{~N}$

3
MHT CET 2025 23rd April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the product ' $B$ ' in the following sequence of reactions.

$$ \text { Ethanenitrile } \xrightarrow{\mathrm{SnCl}_2 . \mathrm{HCl}^{\mathrm{}}} \mathrm{~A} \xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}} \mathrm{B}+\mathrm{NH}_4 \mathrm{Cl} $$

A
Ethylamine
B
Ethanamide
C
Ethanol
D
Ethanal
4
MHT CET 2025 23rd April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify secondary amine from following.

A
Phenylmethanamine
B
N-Methylethanamine
C
$\mathrm{N}, \mathrm{N}$-Dimethylethanamine
D
Prop-2-en-1-amine
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