1
JEE Main 2021 (Online) 24th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
What is the correct sequence of reagents used for converting nitrobenzene into m-dibromobenzene?

JEE Main 2021 (Online) 24th February Evening Shift Chemistry - Compounds Containing Nitrogen Question 122 English
A
$$\stackrel{\mathrm{NaNO}_{2}}{\longrightarrow} / \stackrel{\mathrm{HCl}}{\longrightarrow} / \stackrel{\mathrm{KBr}}{\longrightarrow} / \stackrel{\mathrm{H}^{+}}{\longrightarrow}$$
B
$$\stackrel{\mathrm{Sn} / \mathrm{HCl}}{\longrightarrow} / \stackrel{\mathrm{KBr}}{\longrightarrow} / \stackrel{\mathrm{Br}_{2}}{\longrightarrow} / \stackrel{\mathrm{H}^{+}}{\longrightarrow}$$
C
$$\stackrel{\mathrm{B} \mathrm{B}_{2} / \mathrm{Fe}}{\longrightarrow} / \stackrel{\mathrm{Sn} / \mathrm{HCl}}{\longrightarrow} / \stackrel{\mathrm{NaNO}_{2} / \mathrm{HCl}}{\longrightarrow} / \stackrel{\mathrm{CuBr} / \mathrm{HBr}}{\longrightarrow}$$
D
$$\stackrel{\mathrm{Sn} / \mathrm{HCl}}{\longrightarrow} / \stackrel{\mathrm{Br}_{2}}{\longrightarrow} / \stackrel{\mathrm{NaNO}_{2}}{\longrightarrow} / \stackrel{\mathrm{NaBr}}{\longrightarrow}$$
2
JEE Main 2021 (Online) 24th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The diazonium salt of which of the following compounds will form a coloured dye on reaction with $$\beta$$-Naphthol in NaOH?
A
JEE Main 2021 (Online) 24th February Evening Shift Chemistry - Compounds Containing Nitrogen Question 123 English Option 1
B
JEE Main 2021 (Online) 24th February Evening Shift Chemistry - Compounds Containing Nitrogen Question 123 English Option 2
C
JEE Main 2021 (Online) 24th February Evening Shift Chemistry - Compounds Containing Nitrogen Question 123 English Option 3
D
JEE Main 2021 (Online) 24th February Evening Shift Chemistry - Compounds Containing Nitrogen Question 123 English Option 4
3
JEE Main 2021 (Online) 24th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
In the following reaction the reason why meta-nitro product also formed is :

JEE Main 2021 (Online) 24th February Morning Shift Chemistry - Compounds Containing Nitrogen Question 125 English
A
–NH2 group is highly meta-directive
B
–NO2 substitution always takes place at meta-position
C
Formation of anilinium ion
D
low temperature
4
JEE Main 2021 (Online) 24th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
'A' and 'B' in the following reactions are :

JEE Main 2021 (Online) 24th February Morning Shift Chemistry - Compounds Containing Nitrogen Question 124 English
A
JEE Main 2021 (Online) 24th February Morning Shift Chemistry - Compounds Containing Nitrogen Question 124 English Option 1
B
JEE Main 2021 (Online) 24th February Morning Shift Chemistry - Compounds Containing Nitrogen Question 124 English Option 2
C
JEE Main 2021 (Online) 24th February Morning Shift Chemistry - Compounds Containing Nitrogen Question 124 English Option 3
D
JEE Main 2021 (Online) 24th February Morning Shift Chemistry - Compounds Containing Nitrogen Question 124 English Option 4
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