1
COMEDK 2026 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

Choose the incorrect statement.

A

Cyclic $\mathrm{C}_4 \mathrm{H}_7 \mathrm{OH}$ exists as four structural isomers

B

p- Nitrophenol is more acidic than p- Cresol

C

Relative ease of dehydration of alcohols on heating with a protic acid is Primary $>$ Secondary $>$ Tertiary

D

Reaction of alcohols with anhydrides is carried out in the presence of small amounts of Conc. $\mathrm{H}_2 \mathrm{SO}_4$ to remove the water formed

2
COMEDK 2026 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

When 1 mole of benzene is mixed with 1 mole of toluene, the vapours will contain

A

Higher percentage of benzene

B

Equal mass of benzene and toluene since it is an ideal solution

C

Higher percentage of toluene

D

Equal number of moles of benzene and toluene since it is an ideal solution

3
COMEDK 2026 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

$$ \begin{aligned} &\text { What is the major product }\left[\mathrm{P}_3\right] \text { formed when } n \text { - Hexane undergoes the given series of reactions: }\\ &\begin{aligned} \text { n-Hexane } & \frac{\mathrm{V}_2 \mathrm{O}_5}{20 \mathrm{~atm}, 773 \mathrm{k}}\left[\mathrm{P}_1\right] \\ {\left[\mathrm{P}_1\right] } & \xrightarrow[\triangle]{\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}, \text { Anhyd.AlCl }}\left[\mathrm{P}_2\right] \\ {\left[\mathrm{P}_2\right] } & \xrightarrow[333 \mathrm{~K}]{\text { Conc. } \mathrm{HNO}_3+\mathrm{H}_2 \mathrm{SO}_4}\left[\mathrm{P}_3\right] \text { Major product } \end{aligned} \end{aligned} $$

A

COMEDK 2026 Afternoon Shift Chemistry - Hydrocarbons Question 1 English Option 1

B

COMEDK 2026 Afternoon Shift Chemistry - Hydrocarbons Question 1 English Option 2

C

COMEDK 2026 Afternoon Shift Chemistry - Hydrocarbons Question 1 English Option 3

D

COMEDK 2026 Afternoon Shift Chemistry - Hydrocarbons Question 1 English Option 4

4
COMEDK 2026 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

Pick out the correct option

Assertion(A): Mercury is not considered as a transition element

Reason (R): Mercury is a liquid

A

A is false but R is true

B

Both $A$ and $R$ are true but $R$ is the correct explanation of $A$

C

$A$ is true but $R$ is false

D

Both $A$ and $R$ are true, $R$ is not the correct explanation of $A$