JEE Main 2023 (Online) 24th January Morning Shift | Chemical Bonding & Molecular Structure Question 78 | Chemistry

1

JEE Main 2023 (Online) 24th January Morning Shift

MCQ (Single Correct Answer)

+4

-1

Order of Covalent bond;

$$\mathrm{A.~KF > KI ; LiF > KF}$$

$$\mathrm{B.~KF < KI ; LiF > KF}$$

$$\mathrm{C.~SnCl_4 > SnCl_2 ; CuCl > NaCl}$$

$$\mathrm{D.~LiF > KF ; CuCl < NaCl}$$

$$\mathrm{E.~KF < KI ; CuCl > NaCl}$$

Choose the correct answer from the options given below :

A

B, C only

B

A, B only

C

C, E only

D

B, C, E only

2

JEE Main 2022 (Online) 29th July Morning Shift

MCQ (Single Correct Answer)

+4

-1

Which of the following pair of molecules contain odd electron molecule and an expanded octet molecule?

A

$$\mathrm{BCl}_{3}$$ and $$\mathrm{SF}_{6}$$

B

$$\mathrm{NO}$$ and $$\mathrm{H}_{2} \mathrm{SO}_{4}$$

C

$$\mathrm{SF}_{6}$$ and $$\mathrm{H}_{2} \mathrm{SO}_{4}$$

D

$$\mathrm{BCl}_{3}$$ and $$\mathrm{NO}$$

3

JEE Main 2022 (Online) 29th July Morning Shift

MCQ (Single Correct Answer)

+4

-1

Number of lone pairs of electrons in the central atom of $$\mathrm{SCl}_{2}, \mathrm{O}_{3}, \mathrm{ClF}_{3}$$ and $$\mathrm{SF}_{6}$$, respectively, are :

A

0, 1, 2 and 2

B

2, 1, 2 and 0

C

1, 2, 2 and 0

D

2, 1, 0 and 2

4

JEE Main 2022 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)

+4

-1

Match List - I with List - II.

	List - I		List - II
(A)	$$\psi_{\mathrm{MO}}=\psi_{\mathrm{A}}-\psi_{\mathrm{B}}$$	(I)	Dipole moment
(B)	$$\mu=Q \times r$$	(II)	Bonding molecular orbital
(C)	$$\frac{\mathrm{N}_{\mathrm{b}}-\mathrm{N}_{\mathrm{a}}}{2}$$	(III)	Anti-bonding molecular orbital
(D)	$$\psi_{\mathrm{MO}}=\psi_{\mathrm{A}}+\psi_{\mathrm{B}}$$	(IV)	Bond order

Choose the correct answer from the options given below :

A

$$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{IV}),(\mathrm{D})-(\mathrm{III})$$

B

$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{II})$$

C

$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{IV}),(\mathrm{D})-(\mathrm{II})$$

D

$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{II}),(\mathrm{D})-(\mathrm{I})$$