1
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
In chromotography technique, the purification of compound is independent of :
A
Solubility of the compound
B
Mobility or flow of solvent system
C
Physical state of the pure compound
D
Length of the column or TLC plate
2
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
A group of 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is :
A
As
B
Sb
C
Bi
D
P
3
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Among the following, the aromatic compounds are :

JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Basics of Organic Chemistry Question 140 English
Choose the correct answer from the following options :
A
(B), (C) and (D) only
B
(B) and (C) only
C
(A), (B) and (C) only
D
(A) and (B) only
4
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following reactions DOES NOT involve Hoffmann bromamide degradation?
A
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 129 English Option 1
B
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 129 English Option 2
C
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 129 English Option 3
D
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 129 English Option 4
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