NTA JEE Main 28th July 2022 Shift 2 - Chemistry

Which of the following pair is not isoelectronic species?
(Atomic numbers Sm=62; Er=68; Yb=70; Lu=71; Eu=63; Tb=65; Tm=69)

The correct decreasing order for metallic character is

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

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

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

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

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

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

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

White phosphorus reacts with thionyl chloride to give

Concentrated $$HNO_3$$ reacts with Iodine to give

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

Match List-I with List-II

Choose the correct answer from the options given below

The major product in the given reaction is

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.

Find out the major product for the above reaction.

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

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

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

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

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.

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]

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

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 _____

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

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$$^{-1}$$

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$$^{-3}$$)

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)

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$$^{-1}$$)

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