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1
JEE Main 2022 (Online) 28th July 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 : Thin layer chromatography is an adsorption chromatography.

Reason R : A thin layer of silica gel is spread over a glass plate of suitable size in thin layer chromatography which acts as an adsorbent.

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

A
Both A and R are true and R is the correct explanation of A
B
Both A and R are true but R is NOT the correct explanation of A
C
A is true but R is false
D
A is false but R is true
2
JEE Main 2022 (Online) 28th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List - I with List - II.

List - I List - II
(A) JEE Main 2022 (Online) 28th July Morning Shift Chemistry - Basics of Organic Chemistry Question 83 English 1 (I) Spiro compound
(B) JEE Main 2022 (Online) 28th July Morning Shift Chemistry - Basics of Organic Chemistry Question 83 English 2 (II) Aromatic compound
(C) JEE Main 2022 (Online) 28th July Morning Shift Chemistry - Basics of Organic Chemistry Question 83 English 3 (III) Non-planar Heterocyclic compound
(D) JEE Main 2022 (Online) 28th July Morning Shift Chemistry - Basics of Organic Chemistry Question 83 English 4 (IV) Bicyclo compound

Choose the correct answer from the options given below :

A
(A) - (II), (B) - (I), (C) - (IV), (D) - (III)
B
(A) - (IV), (B) - (III), (C) - (I), (D) - (II)
C
(A) - (III), (B) - (IV), (C) - (I), (D) - (II)
D
(A) - (IV), (B) - (III), (C) - (II), (D) - (I)
3
JEE Main 2022 (Online) 28th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Among the following marked proton of which compound shows lowest $$\mathrm{pK}_{\mathrm{a}}$$ value?

A
JEE Main 2022 (Online) 28th July Morning Shift Chemistry - Basics of Organic Chemistry Question 84 English Option 1
B
JEE Main 2022 (Online) 28th July Morning Shift Chemistry - Basics of Organic Chemistry Question 84 English Option 2
C
JEE Main 2022 (Online) 28th July Morning Shift Chemistry - Basics of Organic Chemistry Question 84 English Option 3
D
JEE Main 2022 (Online) 28th July Morning Shift Chemistry - Basics of Organic Chemistry Question 84 English Option 4
4
JEE Main 2022 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List - I with List - II.

List - I
(Mixture)		 List - II
(Purification Process)
(A) Chloroform & Aniline (I) Steam distillation
(B) Benzoic acid & Napthalene (II) Sublimation
(C) Water & Aniline (III) Distillation
(D) Napthalene & Sodium chloride (IV) Crystallisation

Choose the correct answer from the options given below :

A
(A) - (IV), (B) - (III), (C) - (I), (D) - (II)
B
(A) - (III), (B) - (I), (C) - (IV), (D) - (II)
C
(A) - (III), (B) - (IV), (C) - (II), (D) - (I)
D
(A) - (III), (B) - (IV), (C) - (I), (D) - (II)
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