1
JEE Main 2021 (Online) 16th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Which of the following is least basic?
A
$${(C{H_3}CO)_2}\mathop N\limits^{..} H$$
B
$$(C{H_3}CO)\mathop N\limits^{..} H{C_2}{H_5}$$
C
$${({C_2}{H_5})_3}\mathop N\limits^{..} $$
D
$${({C_2}{H_5})_2}\mathop N\limits^{..} H$$
2
JEE Main 2021 (Online) 16th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Ammonolysis of Alkyl halides followed by the treatment with NaOH solution can be used to prepare primary, secondary and tertiary amines. The purpose of NaOH in the reaction is :
A
to remove acidic impurities
B
to remove basic impurities
C
to activate NH3 used in the reaction
D
to increase the reactivity of alkyl halide
3
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 115 English
In the above chemical reaction, intermediate ''X'' and reagent/condition ''A'' are :
A
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 115 English Option 1
B
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 115 English Option 2
C
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 115 English Option 3
D
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 115 English Option 4
4
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
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 114 English Option 1
B
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 114 English Option 2
C
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 114 English Option 3
D
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 114 English Option 4
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12