JEE Main 2022 (Online) 28th June Morning Shift | Periodic Table & Periodicity Question 98 | Chemistry

Element "E" belongs to the period 4 and group 16 of the periodic table. The valence shell electron configuration of the element, which is just above "E" in the group is

3s², 3p⁴

3d¹⁰, 4s², 4p⁴

4d¹⁰, 5s², 5p⁴

2s², 2p⁴

JEE Main 2022 (Online) 27th June Evening Shift

MCQ (Single Correct Answer)

-1

The correct order of increasing ionic radii is

Mg²⁺ < Na⁺ < F^$$-$$ < O^2$$-$$ < N^3$$-$$

N^3$$-$$ < O^2$$-$$ < F^$$-$$ < Na⁺ < Mg²⁺

F^$$-$$ < Na⁺ < O^2$$-$$ < Mg²⁺ < N^3$$-$$

Na⁺ < F^$$-$$ < Mg²⁺ < O^2$$-$$ < N^3$$-$$

JEE Main 2022 (Online) 27th June Morning Shift

MCQ (Single Correct Answer)

-1

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : The ionic radii of O^2$$-$$ and Mg²⁺ are same.

Reason (R) : Both O^2$$-$$ and Mg²⁺ are isoelectronic species.

In the light of the above statements, choose the correct answer from the options given below.

Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true but (R) is not the correct explanation of (A).

(A) is true but (R) is false.

(A) is false but (R) is true.

JEE Main 2022 (Online) 25th June Evening Shift

MCQ (Single Correct Answer)

-1

The correct order of electron gain enthalpies of Cl, F, Te and Po is

F < Cl < Te < Po

Po < Te < F < Cl

Te < Po < Cl < F

Cl < F < Te < Po

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