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1
JEE Main 2023 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II:

List I (Mixture) List II (Separation Technique)
A. $\mathrm{CHCl}_3+\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2$ I. Steam distillation
B. $\mathrm{C}_6 \mathrm{H}_{14}+\mathrm{C}_5 \mathrm{H}_{12}$ II. Differential extraction
C. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2+\mathrm{H}_2 \mathrm{O}$ III. Distillation
D. $\text { Organic compound in } \mathrm{H}_2 \mathrm{O}$ IV. Fractional distillation
A
A-III, B-I, C-IV, D-II
B
A-II, B-I, C-III, D-IV
C
A-IV, B-I, C-III, D-II
D
A-III, B-IV, C-I, D-II
2
JEE Main 2023 (Online) 25th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following conformations will be the most stable?

A
JEE Main 2023 (Online) 25th January Morning Shift Chemistry - Basics of Organic Chemistry Question 78 English Option 1
B
JEE Main 2023 (Online) 25th January Morning Shift Chemistry - Basics of Organic Chemistry Question 78 English Option 2
C
JEE Main 2023 (Online) 25th January Morning Shift Chemistry - Basics of Organic Chemistry Question 78 English Option 3
D
JEE Main 2023 (Online) 25th January Morning Shift Chemistry - Basics of Organic Chemistry Question 78 English Option 4
3
JEE Main 2023 (Online) 25th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order in aqueous medium of basic strength in case of methyl substituted amines is :

A
$$\mathrm{NH_3 > Me_3N > MeNH_2 > Me_2NH}$$
B
$$\mathrm{Me_3N > Me_2NH > MeNH_2 > NH_3}$$
C
$$\mathrm{Me_2NH > MeNH_2 > Me_3N > NH_3}$$
D
$$\mathrm{Me_2NH > Me_3N > MeNH_2 > NH_3}$$
4
JEE Main 2023 (Online) 24th January Evening 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 : Benzene is more stable than hypothetical cyclohexatriene

Reason R : The delocalised $$\pi$$ electron cloud is attracted more strongly by nuclei of carbon atoms.

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

A
A is true but R is false
B
Both A and R are correct and R is the correct explanation of A
C
Both A and R are correct but R is NOT the correct explanation of A
D
A is false but R is true
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