NTA JEE Mains 1st Feb 2023 Shift 1

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Hydrogen is an environment friendly fuel.
Reason R: Atomic number of hydrogen is 1 and it is a very light element.
In the light of the above statements, choose the correct answer from the options given below

Match List I with List II

Choose the correct answer form the options given below:

Choose the correct statement(s):
A. Beryllium oxide is purely acidic in nature.
B. Beryllium carbonate is kept in the atmosphere of $$CO_2$$.
C. Beryllium sulphate is readily soluble in water.
D. Beryllium shows anomalous behavior.
Choose the correct answer from the options given below:

Resonance in carbonate ion $$CO_3^{2-}$$ i

shown with three resonance structures. Which of the following is true?

But-2-yne is reacted separately with one mole of Hydrogen as shown below:

Identify the incorrect statements from the options given below:
A. A is more soluble than B.
B. The boiling point & melting point of A are higher and lower than B respectively.
C. A is more polar than B because dipole moment of A is zero.
D. $$Br_2$$ adds easily to B than A.

How can photochemical smog be controlled?

Which of the following represents the lattice structure of $$A_{0.95}O$$ containing $$A^{2+}, A^{3+}$$ and $$O^{2-}$$ ions

(A)

(B)

(c)

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Amongst He, Ne, Ar and Kr; 1 g of activated charcoal adsorbs more of Kr.
Reason R: The critical volume $$V_c$$ $$(cm^3 mol^{-1})$$ and critical pressure $$P_c$$ (atm) is highest for Krypton but the compressibility factor at critical point $$Z_c$$ is lowest for Krypton.
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: In an Ellingham diagram, the oxidation of carbon to carbon monoxide shows a negative slope with respect to temperature.
Reason R: CO tends to get decomposed at higher temperature.
In the light of the above statements, choose the correct answer from the options given below

Given below are two statements:
Statement I: Chlorine can easily combine with oxygen to form oxides: and the product has a tendency to explode.
Statement II: Chemical reactivity of an element can be determined by its reaction with oxygen and halogens.
In the light of the above statements, choose the correct answer from the options given below