1
JEE Main 2023 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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The setting time of Cement is increased by adding :

A
Gypsum
B
Limestone
C
Clay
D
Silica
2
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.
3
JEE Main 2023 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

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

Assertion A : Loss of electron from hydrogen atom results in nucleus of $$\sim 1.5 \times 10^{-3} \mathrm{pm}$$ size.

Reason R : Proton $$\left(\mathrm{H}^{+}\right)$$ always exists in combined form.

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

A
Both $$\mathbf{A}$$ and $$\mathbf{R}$$ are correct and $$\mathbf{R}$$ is the correct explanation of $$\mathbf{A}$$
B
A is correct but R is not correct
C
A is not correct but R is correct
D
Both $$\mathbf{A}$$ and $$\mathbf{R}$$ are correct but $$\mathbf{R}$$ is NOT the correct explanation of $$\mathbf{A}$$
4
JEE Main 2023 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The major products A and B from the following reactions are:

JEE Main 2023 (Online) 6th April Morning Shift Chemistry - Compounds Containing Nitrogen Question 15 English

A
JEE Main 2023 (Online) 6th April Morning Shift Chemistry - Compounds Containing Nitrogen Question 15 English Option 1
B
JEE Main 2023 (Online) 6th April Morning Shift Chemistry - Compounds Containing Nitrogen Question 15 English Option 2
C
JEE Main 2023 (Online) 6th April Morning Shift Chemistry - Compounds Containing Nitrogen Question 15 English Option 3
D
JEE Main 2023 (Online) 6th April Morning Shift Chemistry - Compounds Containing Nitrogen Question 15 English Option 4
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