New chat PYQ Library Doubts Rank report

Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →

Haloalkanes and Haloarenes question

2025 · Q98

Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.

PYQ Library
NEET
Chemistry
Haloalkanes and Haloarenes
2025 · Q98

Haloalkanes and Haloarenes question

2025 · Q98

NEETChemistryHaloalkanes and HaloarenesMultiple correct+4 / −1

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) :

NEET 2025 Chemistry - Haloalkanes and Haloarenes Question 2 English 1

undergoes $S_N 2$ reaction faster than

NEET 2025 Chemistry - Haloalkanes and Haloarenes Question 2 English 2

Reason (R) : lodine is a better leaving group because of its large size. In the light of the above statements, choose the correct answer from the options given below:

A
$\mathbf{A}$ is true but $\mathbf{R}$ is false
B
$\mathbf{A}$ is false but $\mathbf{R}$ is true
C
Both $\mathbf{A}$ and $\mathbf{R}$ are true and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$
D
Both $\mathbf{A}$ and $\mathbf{R}$ are true but $\mathbf{R}$ is not the correct explanation of $\mathbf{A}$

View written solutionFree

Correct answer: C

Rate of $S_N 2$ reaction of

NEET 2025 Chemistry - Haloalkanes and Haloarenes Question 2 English Explanation 1

is faster than

NEET 2025 Chemistry - Haloalkanes and Haloarenes Question 2 English Explanation 2

Because iodine is a good leaving group due to large size of iodine. Which stabilises the $\mathrm{I}^{-}$ion.

More from Haloalkanes and Haloarenes

The compound that will undergo SN1 reaction with the fastest rate is2024 · MCQ
Identify the major product C formed in the following reaction sequence : $CH_{3} - CH_{2} - CH_{2} - I NaCN A$ $Partial hydrolysis ⟶ O H^{-} B B r_{2} ⟶ NaOH (major) C$ …2024 · MCQ
The major product $C$ in the below mentioned reaction is: $CH_{3} CH_{2} CH_{2} Br alc. KOH Δ A HBr B aq. KOH Δ C$ …2024 · MCQ
The following reaction method is not suitable for the preparation of the corresponding haloarene products, due to high reactivity of halogen, when X is : Includes diagram2024 · MCQ
Which amongst the following reactions of alkyl halides produces isonitrile as a major product? (A) $R - X + HCN \to$ (B) $R - X + AgCN \to$ (C) $R - X + KCN \to$ (D) $R - X + NaCN C_{2} H_{5} OH ⟶ H_{2} O$ …2023 · MCQ
Choose the correct sequence of reagents in the conversion of 4-nitrotoluene to 2-bromotoluene.2023 · MCQ
Identify the product in the following reaction Includes diagram2023 · MCQ
Identify 'X' in the following reaction. Includes diagram2023 · MCQ