NTA JEE Main 28th July 2022 Shift 2 - Chemistry

NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 31

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Which of the following pair is not isoelectronic species?
(Atomic numbers Ho=67; Er=68; Yb=70; Lu=71; Eu=63; Tb=65; Tm=69)

A

$$Ho^{2+}$$ and $$Er^{3+}$$

B

$$Yb^{2+}$$ and $$Lu^{3+}$$

C

$$Eu^{2+}$$ and $$Tb^{4+}$$

D

$$Tb^{2+}$$ and $$Tm^{4+}$$

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 32

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The correct decreasing order for metallic character is

A

$$Na > Mg > Be > Si > P$$

B

$$P > Si > Be > Mg > Na$$

C

$$Si > P > Be > Na > Mg$$

D

$$Be > Na > Mg > Si > P$$

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 33

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Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Zero orbital overlap is an out of phase overlap.
Reason R: It results due to different orientation/direction of approach of orbitals.
In the light of the above statements, choose the correct answer from the options given below

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is NOT the correct explanation of A

C

A is true but R is false

D

A is false but R is true

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 34

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Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R
Assertion A: The reduction of a metal oxide is easier if the metal formed is in liquid state than solid state.
Reason R: The value of $$\Delta G^\theta$$ becomes more on negative side as entropy is higher in liquid state than solid state.
In the light of the above statements, choose the most appropriate answer from the options given below

A

Both A and R are correct and R is the correct explanation of A

B

Both A and R are correct but R is NOT the correct explanation of A

C

A is correct but R is not correct

D

A is not correct but R is correct

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 35

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Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Permanganate titrations are not performed in presence of hydrochloric acid.
Reason R: Chlorine is formed as a consequence of oxidation of hydrochloric acid.
In the light of the above statements, choose the correct answer from the options given below

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is NOT the correct explanation of A

C

A is true but R is false

D

A is false but R is true

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 36

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The products obtained during treatment of hard water using Clark's method are

A

$$CaCO_3$$ and $$MgCO_3$$

B

$$Ca(OH)_2$$ and $$Mg(OH)_2$$

C

$$CaCO_3$$ and $$Mg(OH)_2$$

D

$$Ca(OH)_2$$ and $$MgCO_3$$

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 37

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Statement I: An alloy of lithium and magnesium is used to make aircraft plates.
Statement II: The magnesium ions are important for cell-membrane integrity.
In the light of the above statements, choose the correct answer from the options given below

A

Both Statement I and Statement II are true

B

Both Statement I and Statement II are false

C

Statement I is true but Statement II is false

D

Statement I is false but Statement II is true

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 38

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Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Thin layer chromatography is an adsorption chromatography.
Reason R: A thin layer of silica gel is spread over a glass plate of suitable size in thin layer chromatography which acts as an adsorbent.
In the light of the above statements, choose the correct answer from the options given below

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is NOT the correct explanation of A

C

A is true but R is false

D

A is false but R is true

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 39

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Arrange the following in increasing order of reactivity towards nitration
A. p-xylene
B. bromobenzene
C. mesitylene
D. nitrobenzene
E. benzene
Choose the correct answer from the options given below

A

$$C < D < E < A < B$$

B

$$D < B < E < A < C$$

C

$$D < C < E < A < B$$

D

$$C < D < E < B < A$$

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 40

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White phosphorus reacts with thionyl chloride to give

A

$$PCl_5, SO_2$$ and $$S_2Cl_2$$

B

$$PCl_3, SO_2$$ and $$S_2Cl_2$$

C

$$PCl_3, SO_2$$ and $$Cl_2$$

D

$$PCl_5, SO_2$$ and $$Cl_2$$

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 41

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Concentrated $$HNO_3$$ reacts with Iodine to give

A

$$HI, NO_2$$ and $$H_2O$$

B

$$HIO_2, N_2O$$ and $$H_2O$$

C

$$HIO_3, NO_2$$ and $$H_2O$$

D

$$HIO_4, N_2O$$ and $$H_2O$$

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 42

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Dinitrogen and dioxygen the main constituents of air do not react with each other in atmosphere to form oxides of nitrogen because

A

$$N_2$$ is unreactive in the condition of atmosphere.

B

Oxides of nitrogen are unstable.

C

Reaction between them can occur in the presence of a catalyst.

D

The reaction is endothermic and requires very high temperature.

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 43

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Match List-I with List-II

List-I (Complex)	List-II (Hybridization)
A. $$Ni(CO)_4$$	I. $$sp^3$$
B. $$[Ni(CN)_4]^{2-}$$	II. $$sp^3d^2$$
C. $$[Co(CN)_6]^{3-}$$	III. $$d^2sp^3$$
D. $$[CoF_6]^{3-}$$	IV. $$dsp^2$$

Choose the correct answer from the options given below

A

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

B

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

C

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

D

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

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 44

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The major product in the given reaction is

A

B

C

D

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 45

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Compound I is heated with Conc. HI to give a hydroxy compound A which is further heated with Zn dust to give compound B. Identify A and B.

A

B

C

D

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 46

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Find out the major product for the above reaction.

A

B

C

D

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 47

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Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Aniline on nitration yields ortho, meta & para nitro derivatives of aniline.
Reason R: Nitrating mixture is a strong acidic mixture.
In the light of the above statements, choose the correct answer from the options given below

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is NOT the correct explanation of A

C

A is true but R is false

D

A is false but R is true

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 48

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Match List I with List II

List-I (Polymer)	List-II (Nature)
A	I. Thermosetting polymer
B	II. Fibers
C	III. Elastomer
D	IV. Thermoplastic polymer

A

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

B

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

C

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

D

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

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 49

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Two statements in respect of drug-enzyme interaction are given below
Statement I: Action of an enzyme can be blocked only when an inhibitor blocks the active site of the enzyme.
Statement II: An inhibitor can form a strong covalent bond with the enzyme.
In the light of the above statements, choose the correct answer from the options given below

A

Both Statement I and Statement II are true

B

Both Statement I and Statement II are false

C

Statement I is true but Statement II is false

D

Statement I is false but Statement II is true

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 50

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The formulas of A and B for the following reaction sequence are

A

$$A = C_7H_{14}O_8, B = C_6H_{14}$$

B

$$A = C_7H_{13}O_7, B = C_7H_{14}O$$

C

$$A = C_7H_{12}O_8, B = C_6H_{14}$$

D

$$A = C_7H_{14}O_8, B = C_6H_{14}O_6$$

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 51

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2 L of 0.2 M $$H_2SO_4$$ is reacted with 2 L of 0.1 M NaOH solution, the molarity of the resulting product $$Na_2SO_4$$ in the solution is _____ millimolar.

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 52

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If the wavelength for an electron emitted from $$H^-$$ atom is $$3.3 \times 10^{-10}$$ m, then energy absorbed by the electron in its ground state compared to minimum energy required for its escape from the atom, is _____ times. [Given: $$h = 6.626 \times 10^{-34}$$ Js, Mass of electron $$= 9.1 \times 10^{-31}$$ kg]

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 53

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Among the following the number of state variable is
Internal energy (U), Volume (V), Heat (q), Enthalpy (H)

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 54

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At 600 K, 2 mol of NO are mixed with 1 mol of $$O_2$$.
$$2NO(g) + O_2(g) \rightleftharpoons 2NO_2(g)$$
The reaction occurring as  comes to equilibrium under a total pressure of 1 atm. Analysis of the system shows that 0.6 mol of oxygen are present at equilibrium. The equilibrium constant for the reaction is _____

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 55

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On reaction with stronger oxidizing agent like $$KIO_4$$, hydrogen peroxide oxidizes with the evolution of $$O_2$$. The oxidation number of I in $$KIO_4$$ changes to

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 56

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A sample of 0.125 g of an organic compound when analysed by Duma's method yields 22.78 mL of nitrogen gas collected over KOH solution at 280 K and 759 mmHg. The percentage of nitrogen in the given organic compound is _____
(a) The vapour pressure of water at 280 K is 14.2 mmHg
(b) $$R = 0.082$$ L atm K$$^{-1}$$ mol$$^{-1}$$

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 57

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Metal M crystallizes into a FCC lattice with the edge length of $$4.0 \times 10^{-8}$$ cm. The atomic mass of the metal is _____ g/mol. (Use: $$N_A = 6.02 \times 10^{23}$$ mol$$^{-1}$$, density of metal, $$M = 9.03$$ g cm$$^{-3}$$)

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 58

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A gaseous mixture of two substances A and B, under a total pressure of 0.8 atm is in equilibrium with an ideal liquid solution. The mole fraction of substance A is 0.5 in the vapour phase and 0.2 in the liquid phase. The vapour pressure of pure liquid A is _____ atm. (Nearest integer)

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 59

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For a reaction, given below is the graph of $$\ln k$$ vs $$\frac{1}{T}$$. The activation energy for the reaction is equal to _____ cal mol$$^{-1}$$. (Given: $$R = 2$$ cal K$$^{-1}$$ mol$$^{-1}$$)

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NTA JEE Main 28th July 2022 Shift 2 - Chemistry - Question 60

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Among the following the number of curves not in accordance with Freundlich adsorption isotherm is

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