1
JEE Main 2024 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Alkyl halide is converted into alkyl isocyanide by reaction with

A
$$\mathrm{KCN}$$
B
$$\mathrm{NH}_4 \mathrm{CN}$$
C
$$\mathrm{NaCN}$$
D
$$\mathrm{AgCN}$$
2
JEE Main 2024 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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

Assertion A : Aryl halides cannot be prepared by replacement of hydroxyl group of phenol by halogen atom.

Reason R : Phenols react with halogen acids violently.

In the light of the above statements, choose the most appropriate from the options given below :

A
A is true but R is false
B
Both A and R are true but R is NOT the correct explanation of A
C
A is false but R is true
D
Both A and R are true and R is the correct explanation of A
3
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
$$\mathrm{H}_2 \mathrm{N}-\left(\mathrm{CH}_2\right)_4-\mathrm{NH}_2$$
4
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
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12