1
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
Choose the correct statement.
A
A solution formed by adding Carbon di-sulphide to Acetone forms a maximum boiling azeotrope.
B
Hypotonic solution is more concentrated with respect to the other solution separated by a semi permeable membrane
C
For a solvent, $\quad K_b=\frac{R \times M_1 \times T_b^2}{1000 \times \Delta \text { Hvap }}$ $\left(\mathrm{R}=\mathrm{Gas}\right.$ constant, $M_1=$ Molar mass of solvent, $T_b=B \cdot P$ of the solvent $)$
D
A 1.0 molal solution of Glucose in water is more concentrated than 1.0 M glucose solution in the same solvent.
2
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
$\mathrm{C}_6 \mathrm{H}_5-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_3$
3
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
$\mathrm{D}>\mathrm{C}>\mathrm{A}>\mathrm{B}$
4
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
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