1
JEE Main 2024 (Online) 27th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify B formed in the reaction.

$$\mathrm{Cl}-\left(\mathrm{CH}_2\right)_4-\mathrm{Cl} \xrightarrow{\text { excess } \mathrm{NH}_3} \mathrm{~A} \xrightarrow{\mathrm{NaOH}} \mathrm{B}+\mathrm{H}_2 \mathrm{O}+\mathrm{NaCl}$$

A
JEE Main 2024 (Online) 27th January Evening Shift Chemistry - Haloalkanes and Haloarenes Question 22 English Option 1
B
JEE Main 2024 (Online) 27th January Evening Shift Chemistry - Haloalkanes and Haloarenes Question 22 English Option 2
C
$$\stackrel{-}{\mathrm{Cl}}\stackrel{+}{\mathrm{N}} \mathrm{H}_3-\left(\mathrm{CH}_2\right)_4-\stackrel{+}{\mathrm{N}} \mathrm{H}_3 \mathrm{Cl}^{-}$$
D
$$\mathrm{H}_2 \mathrm{N}-\left(\mathrm{CH}_2\right)_4-\mathrm{NH}_2$$
2
JEE Main 2024 (Online) 27th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which among the following halide/s will not show $$\mathrm{S_N 1}$$ reaction:

(A) $$\mathrm{H}_2 \mathrm{C}=\mathrm{CH}-\mathrm{CH}_2 \mathrm{Cl}$$

(B) $$\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{Cl}$$

(C) JEE Main 2024 (Online) 27th January Evening Shift Chemistry - Haloalkanes and Haloarenes Question 23 English 1

(D) JEE Main 2024 (Online) 27th January Evening Shift Chemistry - Haloalkanes and Haloarenes Question 23 English 2

Choose the most appropriate answer from the options given below :

A
(B) and (C) only
B
(A), (B) and (D) only
C
(B) only
D
(A) and (B) only
3
JEE Main 2024 (Online) 27th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is ;

A
Retention occurs in $$S_N 1$$ reaction and inversion occurs in $$\mathrm{S}_{\mathrm{N}} 2$$ reaction.
B
Racemisation occurs in $$\mathrm{S}_{\mathrm{N}} 1$$ reaction and retention occurs in $$\mathrm{S}_{\mathrm{N}} 2$$ reaction.
C
Racemisation occurs in both $$\mathrm{S}_{\mathrm{N}} 1$$ and $$\mathrm{S}_{\mathrm{N}} 2$$ reactions.
D
Racemisation occurs in $$S_N 1$$ reaction and inversion occurs in $$\mathrm{S}_{\mathrm{N}} 2$$ reaction.
4
JEE Main 2023 (Online) 15th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product formed in the Friedel-Craft acylation of chlorobenzene is
A
JEE Main 2023 (Online) 15th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 35 English Option 1
B
JEE Main 2023 (Online) 15th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 35 English Option 2
C
JEE Main 2023 (Online) 15th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 35 English Option 3
D
JEE Main 2023 (Online) 15th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 35 English Option 4
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