1
JEE Main 2021 (Online) 25th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct sequence of reagents used in the preparation of 4-bromo-2-nitroethyl benzene from benzene is :
A
$$C{H_3}COCl/AlC{l_3},B{r_2}/AlB{r_3},HN{O_3}/{H_2}S{O_4},Zn/HCl$$
B
$$C{H_3}COCl/AlC{l_3},Zn - Hg/HCl,B{r_2}/AlB{r_3},HN{O_3}/{H_2}S{O_4}$$
C
$$B{r_2}/AlB{r_3},C{H_3}COCl/AlC{l_3},HN{O_3}/{H_2}S{O_4},Zn/HCl$$
D
$$HN{O_3}/{H_2}S{O_4},B{r_2}/AlC{l_3},C{H_3}COCl/AlC{l_3},Zn - Hg/HCl$$
2
JEE Main 2021 (Online) 25th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product of the following reaction is :

JEE Main 2021 (Online) 25th February Evening Shift Chemistry - Hydrocarbons Question 71 English
A
JEE Main 2021 (Online) 25th February Evening Shift Chemistry - Hydrocarbons Question 71 English Option 1
B
JEE Main 2021 (Online) 25th February Evening Shift Chemistry - Hydrocarbons Question 71 English Option 2
C
JEE Main 2021 (Online) 25th February Evening Shift Chemistry - Hydrocarbons Question 71 English Option 3
D
JEE Main 2021 (Online) 25th February Evening Shift Chemistry - Hydrocarbons Question 71 English Option 4
3
JEE Main 2021 (Online) 25th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify A in the given chemical reaction.

JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Hydrocarbons Question 74 English
A
JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Hydrocarbons Question 74 English Option 1
B
JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Hydrocarbons Question 74 English Option 2
C
JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Hydrocarbons Question 74 English Option 3
D
JEE Main 2021 (Online) 25th February Morning Shift Chemistry - Hydrocarbons Question 74 English Option 4
4
JEE Main 2021 (Online) 24th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is :

JEE Main 2021 (Online) 24th February Evening Shift Chemistry - Hydrocarbons Question 75 English
A
(iv) < (i) < (ii) < (iii)
B
(iv) < (iii) < (ii) < (i)
C
(iv) < (i) < (iii) < (ii)
D
(i) < (ii) < (iii) < (iv)
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