JEE Main 2022 (Online) 28th July Morning Shift | JEE Main Year Wise Previous Years Questions - ExamSIDE.Com

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1

JEE Main 2022 (Online) 28th July Morning Shift

MCQ (Single Correct Answer)

+4

-1

Identify the incorrect statement from the following.

A

A circular path around the nucleus in which an electron moves is proposed as Bohr's orbit.

B

An orbital is the one electron wave function $$(\psi)$$ in an atom.

C

The existence of Bohr's orbits is supported by hydrogen spectrum.

D

Atomic orbital is characterised by the quantum numbers $$\mathrm{n}$$ and $$l$$ only.

2

JEE Main 2022 (Online) 28th July Morning Shift

MCQ (Single Correct Answer)

+4

-1

Which of the following relation is not correct?

A

$$\Delta \mathrm{H}=\Delta \mathrm{U}-\mathrm{P} \Delta \mathrm{V}$$

B

$$\Delta \mathrm{U}=\mathrm{q}+\mathrm{W}$$

C

$$\Delta \mathrm{S}_{\text {sys }}+\Delta \mathrm{S}_{\text {surr }} \geqslant 0$$

D

$$\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}$$

3

JEE Main 2022 (Online) 28th July Morning Shift

MCQ (Single Correct Answer)

+4

-1

Match List - I with List - II.

	List - I		List - II
(A)	$$Cd(s) + 2Ni{(OH)_3}(s) \to CdO(s) + 2Ni{(OH)_2}(s) + {H_2}O(l)$$	(I)	Primary battery
(B)	$$Zn(Hg) + HgO(s) \to ZnO(s) + Hg(l)$$	(II)	Discharging of secondary battery
(C)	$$2PbS{O_4}(s) + 2{H_2}O(l) \to Pb(s) + Pb{O_2}(s) + 2{H_2}S{O_4}(aq)$$	(III)	Fuel cell
(D)	$$2{H_2}(g) + {O_2}(g) \to 2{H_2}O(l)$$	(IV)	Charging of secondary battery

Choose the correct answer from the options given below:

A

$$(\mathrm{A})-(\mathrm{I}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{III}),(\mathrm{D})-(\mathrm{IV})$$

B

$$(\mathrm{A})-(\mathrm{IV}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{II}),(\mathrm{D})-(\mathrm{III})$$

C

$$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{IV}),(\mathrm{D})-(\mathrm{III})$$

D

$$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{III}),(\mathrm{D})-(\mathrm{IV})$$

4

JEE Main 2022 (Online) 28th July Morning Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

Match List - I with List - II.

	List - I Reaction		List - II Catalyst
(A)	$$4N{H_3}(g) + 5{O_2}(g) \to 4NO(g) + 6{H_2}O(g)$$	(I)	$$NO(g)$$
(B)	$${N_2}(g) + 3{H_2}(g) \to 2N{H_3}(g)$$	(II)	$${H_2}S{O_4}(l)$$
(C)	$${C_{12}}{H_{22}}{O_{11}}(aq) + {H_2}O(l) \to \mathop {{C_6}{H_{12}}{O_6}}\limits_{Glu\cos e} + \mathop {{C_6}{H_{12}}{O_6}}\limits_{Fructose} $$	(III)	$$Pt(s)$$
(D)	$$2S{O_2}(g) + {O_2}(g) \to 2S{O_3}(g)$$	(IV)	$$Fe(s)$$

Choose the correct answer from the options given below :

A

$$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{III}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{IV})$$

B

$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{IV})$$

C

$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{II}),(\mathrm{D})-(\mathrm{I})$$

D

(A) - (III), (B) - (II), (C) - (IV), (D) - (I)

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