1
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
Benzene diazonium chloride when warmed with water gives a compound, whose Sodium salt when reacted with Allyl bromide gives compound $[\mathrm{X}]$. Identify $[\mathrm{X}]$.
A
$\mathrm{C}_6 \mathrm{H}_5-\mathrm{CH}-\left(\mathrm{CH}_3\right)_2$
B
$\mathrm{C}_6 \mathrm{H}_5-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}=\mathrm{CH}_2$
C
$\mathrm{C}_6 \mathrm{H}_5-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_3$
D
$\mathrm{C}_6 \mathrm{H}_5-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_3$
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.

COMEDK 2025 Morning Shift Chemistry - General Organic Chemistry Question 2 English

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

Cyclohexanol undergoes a series of reactions as given. Identify compound (iv).

$\mathrm{C}_6 \mathrm{H}_{11} \mathrm{OH}+\mathrm{CrO}_3 \rightarrow(\mathrm{i})+\mathrm{C}_6 \mathrm{H}_5 \mathrm{MgI} \rightarrow(\mathrm{ii})+$ dil. $\mathrm{HCl} \rightarrow(\mathrm{iii})+$ Conc. $\mathrm{H}_3 \mathrm{PO}_4 \rightarrow(\mathrm{iv})$

A
COMEDK 2025 Morning Shift Chemistry - Alcohol, Phenols and Ethers Question 2 English Option 1
B
COMEDK 2025 Morning Shift Chemistry - Alcohol, Phenols and Ethers Question 2 English Option 2
C
COMEDK 2025 Morning Shift Chemistry - Alcohol, Phenols and Ethers Question 2 English Option 3
D
COMEDK 2025 Morning Shift Chemistry - Alcohol, Phenols and Ethers Question 2 English Option 4
4
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Match the structures in Column I with their correct IUPAC names given in Column II.

Column I Column II
A. COMEDK 2025 Morning Shift Chemistry - IUPAC Nomenclatures Question 1 English 1 P. 2,3-Dibromo-1-phenylpentane.
B. COMEDK 2025 Morning Shift Chemistry - IUPAC Nomenclatures Question 1 English 2 Q. 2,3- Dibromohexanedial.
C. COMEDK 2025 Morning Shift Chemistry - IUPAC Nomenclatures Question 1 English 3 R. 2- ( 4- isobutylphenyl) propanoic acid
D. COMEDK 2025 Morning Shift Chemistry - IUPAC Nomenclatures Question 1 English 4 S. 2- Hydroxy-1,2,3- propanetricarboxylic acid.

A
$\mathrm{A}=\mathrm{Q} \quad \mathrm{B}=\mathrm{P} \quad \mathrm{C}=\mathrm{S} \quad \mathrm{D}=\mathrm{R}$
B
$\mathrm{A}=\mathrm{R} \quad \mathrm{B}=\mathrm{S} \quad \mathrm{C}=\mathrm{Q} \quad \mathrm{D}=\mathrm{P}$
C
$\mathrm{A}=\mathrm{S} \quad \mathrm{B}=\mathrm{R} \quad \mathrm{C}=\mathrm{Q} \quad \mathrm{D}=\mathrm{P}$
D
$\mathrm{A}=\mathrm{S} \quad \mathrm{B}=\mathrm{R} \quad \mathrm{C}=\mathrm{P} \quad \mathrm{D}=\mathrm{Q}$
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12