S 1 : The polarizing power of a cation and polarizability o…

Chemistry Chemical Bonding and Molecular Structure Statement Based Single Correct MCQ

Published on: August 14, 2026

S 1 : The polarizing power of a cation and polarizability of an anion, both are directly proportional to their sizes.

S 2 : H 2 + and He 2 + have same bond order but H 2 + is more stable than He 2 + .

S 3 : The strength of hydrogen bond does not depend at all on the availability of the lone pair of electrons on the atom forming H-bond.

S 4 : OF 2 and Cl 2 O both are sp 3 hybridized and bond angle in Cλ 2 O is greater than 109 0 28’ .

T F F T

F FF T

F T F T

T TTT

Text Solution

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The correct answer is:

S 1 : Polarizing power of a cation is inversely proportional to its size.

S 2 : H 2 + : σ 1s1 B.O. =

He 2 + : σ 1s2 σ * 1s1 B.O. =

But He 2 + has electron in antibonding molecular orbital so its is unstable.

S 3 : H-bond formation requires the availability of lone pair of electron.

S 4 : In Cl 2 O, the bond angle is more than 109 0 28’ due to steric repulsion.

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