1
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Given below are two reactions, involved in the commercial production of dihydrogen (H$$_2$$). The two reactions are carried out at temperature "T$$_1$$" and "T$$_2$$", respectively

$$C(s) + {H_2}O(g)\buildrel {{T_1}} \over \longrightarrow CO(g) + {H_2}(g)$$

$$CO(g) + {H_2}O(g)\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{Catalyst}^{{T_2}}} C{O_2}(g) + {H_2}(g)$$

The temperatures T$$_1$$ and T$$_2$$ are correctly related as :

A
T$$_1$$ < T$$_2$$
B
T$$_1$$ = T$$_2$$
C
T$$_1$$ = 100 K, T$$_2$$ = 1270 K
D
T$$_1$$ > T$$_2$$
2
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given

(A) $$\mathrm{2CO(g)+O_2(g)\to 2CO_2(g)}$$ $$\mathrm{\Delta H_1^0=-x~kJ~mol^{-1}}$$
(B) $$\mathrm{C(graphite)+O_2(g)\to CO_2(g)}$$ $$\mathrm{\Delta H_2^0=-y~kJ~mol^{-1}}$$

$$\mathrm{\Delta H^0}$$ for the reaction

$$\mathrm{C(graphite)+\frac{1}{2}O_2(g)\to CO(g)}$$ is :

A
$$\frac{x-2y}{2}$$
B
$$\frac{x+2y}{2}$$
C
$$2y-x$$
D
$$\frac{2x-y}{2}$$
3
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List I with List II

List I
Industry
List II
Waste Generated
(A) Steel plants (I) Gypsum
(B) Thermal power plants (II) Fly ash
(C) Fertilizer industries (III) Slag
(D) Paper mills (IV) Bio-degradable wastes

Choose the correct answer from the options given below :

A
(A)-(III), (B)-(II), (C)-(I), (D)-(IV)
B
(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
C
(A)-(IV), (B)-(I), (C)-(II), (D)-(III)
D
(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
4
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Isomeric amines with molecular formula C$$_8$$H$$_{11}$$N give the following tests

Isomer (P) $$\Rightarrow$$ Can be prepared by Gabriel phthalimide synthesis

Isomer (Q) $$\Rightarrow$$ Reacts with Hinsberg's reagent to give solid insoluble in NaOH

Isomer (R) $$\Rightarrow$$ Reacts with HONO followed by $$\beta$$-naphthol in NaOH to give red dye.

Isomers (P), (Q) and (R) respectively are

A
JEE Main 2023 (Online) 10th April Morning Shift Chemistry - Compounds Containing Nitrogen Question 33 English Option 1
B
JEE Main 2023 (Online) 10th April Morning Shift Chemistry - Compounds Containing Nitrogen Question 33 English Option 2
C
JEE Main 2023 (Online) 10th April Morning Shift Chemistry - Compounds Containing Nitrogen Question 33 English Option 3
D
JEE Main 2023 (Online) 10th April Morning Shift Chemistry - Compounds Containing Nitrogen Question 33 English Option 4
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