1
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of reactivity of following haloarenes towards nucleophilic substitution with aqueous $$\mathrm{NaOH}$$ is :

JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Haloalkanes and Haloarenes Question 18 English

Choose the correct answer from the options given below:

A
$$\mathrm{C}>\mathrm{A}>\mathrm{D}>\mathrm{B}$$
B
$$\mathrm{D}>\mathrm{B}>\mathrm{A}>\mathrm{C}$$
C
$$\mathrm{A}>\mathrm{B}>\mathrm{D}>\mathrm{C}$$
D
$$\mathrm{D}>\mathrm{C}>\mathrm{B}>\mathrm{A}$$
2
JEE Main 2023 (Online) 8th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Choose the halogen which is most reactive towards $$\mathrm{S}_{\mathrm{N}} 1$$ reaction in the given compounds (A, B, C & D)

JEE Main 2023 (Online) 8th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 16 English

A
$$\mathrm{A}-\mathrm{Br}_{(\mathrm{b})} ; \mathrm{B}-\mathrm{I}_{(\mathrm{a})} ; \mathrm{C}-\mathrm{Br}_{(\mathrm{a})} ; \mathrm{D}-\mathrm{Br}_{(\mathrm{a})}$$
B
$$\mathrm{A}-\mathrm{Br}_{(\mathrm{a})} ; \mathrm{B}-\mathrm{I}_{(\mathrm{a})} ; \mathrm{C}-\mathrm{Br}_{(\mathrm{a})} ; \mathrm{D}-\mathrm{Br}_{(\mathrm{a})}$$
C
$$\mathrm{A}-\mathrm{Br}_{(b)} ; \mathrm{B}-\mathrm{I}_{(b)} ; \mathrm{C}-\mathrm{Br}_{(b)} ; \mathrm{D}-\mathrm{Br}_{(\mathrm{b})}$$
D
$$\mathrm{A}-\mathrm{Br}_{(\mathrm{a})} ; \mathrm{B}-\mathrm{I}_{(\mathrm{a})} ; \mathrm{C}-\mathrm{Br}_{(b)} ; \mathrm{D}-\mathrm{Br}_{(\mathrm{a})}$$
3
JEE Main 2023 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

For the reaction

JEE Main 2023 (Online) 6th April Morning Shift Chemistry - Haloalkanes and Haloarenes Question 15 English

The correct statement is

A
The solvent used in the reaction solvates the ions formed in rate determining step.
B
Br$$^-$$ can act as competing nucleophile.
C
The reaction can occur in acetic acid also.
D
The transition state formed in the above reaction is less polar than the localised anion.
4
JEE Main 2023 (Online) 31st January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
In the following halogenated organic compounds, the one with the maximum number of chlorine atoms in its structure is :
A
Gammaxene
B
Chloropicrin
C
Chloral
D
Freon-12
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