1
JEE Main 2023 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
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JEE Main 2023 (Online) 30th January Evening Shift Chemistry - Compounds Containing Nitrogen Question 39 English

In the above conversion of compound $(\mathrm{X})$ to product $(\mathrm{Y})$, the sequence of reagents to be used will be:

A
$\begin{array}{lll}\text { (i) } \mathrm{Br}_2, \mathrm{Fe} & \text { (ii) } \mathrm{Fe}, \mathrm{H}^{+} & \text {(iii) } \mathrm{LiAIH}_4\end{array}$
B
$\begin{array}{lll}\text { (i) } \mathrm{Br}_2(\mathrm{aq}) & \text { (ii) } \mathrm{LiAIH}_4 & \text { (iii) } \mathrm{H}_3 \mathrm{O}^{+}\end{array}$
C
(i) $\mathrm{Fe}, \mathrm{H}^{+}$   (ii) $\mathrm{Br}_2$ (aq)   (iii) $\mathrm{HNO}_2$   (iv) $\mathrm{H}_3 \mathrm{PO}_2$
D
(i) $\mathrm{Fe}, \mathrm{H}^{+}$   (ii) $\mathrm{Br}_2(\mathrm{aq})$   (iii) $\mathrm{HNO}_2$   (iv) $\mathrm{CuBr}$
2
JEE Main 2023 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II:

List I (Mixture) List II (Separation Technique)
A. $\mathrm{CHCl}_3+\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2$ I. Steam distillation
B. $\mathrm{C}_6 \mathrm{H}_{14}+\mathrm{C}_5 \mathrm{H}_{12}$ II. Differential extraction
C. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2+\mathrm{H}_2 \mathrm{O}$ III. Distillation
D. $\text { Organic compound in } \mathrm{H}_2 \mathrm{O}$ IV. Fractional distillation
A
A-III, B-I, C-IV, D-II
B
A-II, B-I, C-III, D-IV
C
A-IV, B-I, C-III, D-II
D
A-III, B-IV, C-I, D-II
3
JEE Main 2023 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Maximum number of electrons that can be accommodated in shell with $n=4$ are:
A
50
B
32
C
72
D
16
4
JEE Main 2023 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Bond dissociation energy of "E-H" bond of the "$\mathrm{H}_{2} \mathrm{E}$ " hydrides of group 16 elements (given below), follows order.

A. $\mathrm{O}$

B. $\mathrm{S}$

C. Se

D. $\mathrm{Te}$

Choose the correct from the options given below:
A
$\mathrm{A}>\mathrm{B}>\mathrm{C}>\mathrm{D}$
B
$\mathrm{D}>\mathrm{C}>\mathrm{B}>\mathrm{A}$
C
$\mathrm{B}>\mathrm{A}>\mathrm{C}>\mathrm{D}$
D
$\mathrm{A}>\mathrm{B}>\mathrm{D}>\mathrm{C}$
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