1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Arrange the compounds $$\mathrm{A}, \mathrm{B}, \mathrm{C}$$ and $$\mathrm{D}$$ in the increasing order of their reactivity towards $$\mathrm{S_N}1$$ reaction.

$$ \begin{aligned} & \mathrm{A}=\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Cl} \\ & \mathrm{B}=\mathrm{C}_6 \mathrm{H}_5 \mathrm{Cl} \\ & \mathrm{C}=\mathrm{CH}_2=\mathrm{CH}-\mathrm{Cl} \\ & \mathrm{D}=\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{Cl} \end{aligned}$$

A
$$\mathrm{D}<\mathrm{B}<\mathrm{A}<\mathrm{C}$$
B
$$\mathrm{D}<\mathrm{C}<\mathrm{B}<\mathrm{A}$$
C
$$\mathrm{B}<\mathrm{D}<\mathrm{C}<\mathrm{A}$$
D
$$\mathrm{C}<\mathrm{A}<\mathrm{D}<\mathrm{B}$$
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the products C, D and F formed in the following sets of reactions.

COMEDK 2024 Evening Shift Chemistry - Haloalkanes and Haloarenes Question 2 English

A
$$ \mathrm{C}=\mathrm{p} \text {-nitrobromobenzene } \mathrm{D}=\mathrm{m} \text {-nitrobromobenzene } \mathrm{F}=\text { o-nitrobromobenzene } $$
B
$$ \mathrm{C}=\text { o-nitrobromobenzene } \mathrm{D}=\mathrm{m} \text {-nitrobromobenzene } \quad \mathrm{F}=\mathrm{p} \text {-nitrobromobenzene } $$
C
$$ \mathrm{C}=\mathrm{o} \text {-nitrobromobenzene } \mathrm{D}=\mathrm{p} \text {-nitrobromobenzene } \mathrm{F}=\mathrm{m} \text {-nitrobromobenzene } $$
D
$$ \mathrm{C}=\mathrm{m} \text {-nitrobromobenzene } \mathrm{D}=\mathrm{p} \text {-nitrobromobenzene } \mathrm{F}=\text { o-nitrobromobenzene } $$
3
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the following compounds when reacted with $$\mathrm{NaOH}$$ (aq) undergoes Substitution Nucleophilic Bimolecular reaction with retention of configuration?

A
COMEDK 2024 Morning Shift Chemistry - Haloalkanes and Haloarenes Question 6 English Option 1
B
COMEDK 2024 Morning Shift Chemistry - Haloalkanes and Haloarenes Question 6 English Option 2
C
COMEDK 2024 Morning Shift Chemistry - Haloalkanes and Haloarenes Question 6 English Option 3
D
COMEDK 2024 Morning Shift Chemistry - Haloalkanes and Haloarenes Question 6 English Option 4
4
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$t$$-butyl chloride preferably undergo hydrolysis by

A
$$\mathrm{S}_{\mathrm{N}} 1$$ mechanism
B
$$\mathrm{S}_{\mathrm{N}} 2$$ mechanism
C
any of (a) and (b)
D
None of the above
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