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1
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Arrange the following free radicals in the increasing order of their stability:

A B C D

A
$\mathrm{A}<\mathrm{B}<\mathrm{D}<\mathrm{C}$
B
$\mathrm{C}<\mathrm{D}<\mathrm{B}<\mathrm{A}$
C
$\mathrm{C}<\mathrm{B}<\mathrm{D}<\mathrm{A}$
D
$\mathrm{A}<\mathrm{B}<\mathrm{C}<\mathrm{D}$
2
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Arrange the following in the decreasing order of their $\mathrm{pK}_{\mathrm{a}}$ values.

A
$\mathrm{A}>\mathrm{C}>\mathrm{D}>\mathrm{B}$
B
$\mathrm{C}>\mathrm{A}>\mathrm{B}>\mathrm{D}$
C
$\mathrm{B}>\mathrm{D}>\mathrm{C}>\mathrm{A}$
D
$\mathrm{D}>\mathrm{C}>\mathrm{A}>\mathrm{B}$
3
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the compound which is non-aromatic in nature.

COMEDK 2024 Evening Shift Chemistry - General Organic Chemistry Question 1 English

A
D
B
A
C
B
D
C
4
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following carbanions is the least stable?

A
$$\left(\mathrm{CH}_3\right)_2 \mathrm{CH}^{-}$$
B
$$\mathrm{C}_6 \mathrm{H}_5^{-}$$
C
$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2^{-}$$
D
$$\mathrm{CH}_2=\mathrm{CHCH}_2^{-}$$
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