JEE Main 2023 (Online) 31st January Morning Shift | Periodic Table & Periodicity Question 36 | Chemistry

Bond dissociation energy of "E-H" bond of the "$\mathrm{H}_{2} \mathrm{E}$ " hydrides of group 16 elements (given below), follows order.

A. $\mathrm{O}$

B. $\mathrm{S}$

C. Se

D. $\mathrm{Te}$

Choose the correct from the options given below:

$\mathrm{A}>\mathrm{B}>\mathrm{C}>\mathrm{D}$

$\mathrm{D}>\mathrm{C}>\mathrm{B}>\mathrm{A}$

$\mathrm{B}>\mathrm{A}>\mathrm{C}>\mathrm{D}$

$\mathrm{A}>\mathrm{B}>\mathrm{D}>\mathrm{C}$

JEE Main 2023 (Online) 30th January Morning Shift

MCQ (Single Correct Answer)

-1

Match List I with List II

	List I (Atomic number)		List II (Block of periodic table)
A.	37	I.	p-block
B.	78	II.	d-block
C.	52	III.	f-block
D.	65	IV.	s-block

Choose the correct answer from the options given below :

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

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

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

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

JEE Main 2023 (Online) 29th January Evening Shift

MCQ (Single Correct Answer)

-1

Given below are two statements :

Statement I : The decrease in first ionization enthalpy from B to Al is much larger than that from Al to Ga.

Statement II : The d orbitals in Ga are completely filled.

In the light of the above statements, choose the most appropriate answer from the options given below

Statement I is correct but statement II is incorrect

Statement I is incorrect but statement II is correct

Both the statements I and II are correct

Both the statements I and II are incorrect

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