1
JEE Main 2022 (Online) 27th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of increasing intermolecular hydrogen bond strength is

A
HCN < H2O < NH3
B
HCN < CH4 < NH3
C
CH4 < HCN < NH3
D
CH4 < NH3 < HCN
2
JEE Main 2022 (Online) 27th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Based upon VSEPR theory, match the shape (geometry) of the molecules in List-I with the molecules in List-II and select the most appropriate option.

List - I
(Shape)
List - II
(Molecules)
(A) T-shaped (I) XeF$$_4$$
(B) Trigonal planar (II) SF$$_4$$
(C) Square planar (III) ClF$$_3$$
(D) See-saw (IV) BF$$_3$$

A
(A) - (I), (B) - (II), (C) - (III), (D) - (IV)
B
(A) - (III), (B) - (IV), (C) - (I), (D) - (II)
C
(A) - (III), (B) - (IV), (C) - (I), (D) - (I)
D
(A) - (IV), (B) - (III), (C) - (I), (D) - (II)
3
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Consider the ions/molecule

O$$_2^ + $$, O2, O$$_2^ - $$, O$$_2^ {2-} $$

For increasing bond order the correct option is :

A
O$$_2^ {2-} $$ < O$$_2^ - $$ < O2 < O$$_2^ + $$
B
O$$_2^ - $$ < O$$_2^ {2-} $$ < O2 < O$$_2^ + $$
C
O$$_2^ - $$ < O$$_2^ {2-} $$ < O$$_2^ + $$ < O2
D
O$$_2^ - $$ < O$$_2^ + $$ < O$$_2^ {2-} $$ < O2
4
JEE Main 2022 (Online) 25th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Bonding in which of the following diatomic molecule(s) become(s) stronger, on the basis of MO Theory, by removal of an electron?

(A) NO

(B) N2

(C) O2

(D) C2

(E) B2

Choose the most appropriate answer from the options given below :

A
(A), (B), (C) only
B
(B), (C), (E) only
C
(A), (C) only
D
(D) only
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