Question

Given below are two statements : one is labelled as Statement I and the other is labelled as Statement II :

Statement I: The number of species among $\mathrm{BF}_{4}^{-}, \mathrm{SiF}_{4}, \mathrm{XeF}_{4}$ and $\mathrm{SF}_{4}$ , that have unequal $\mathrm{E}-\mathrm{F}$ bond lengths is two. Here, E is the central atom.

Statement II: Among $\mathrm{O}_{2}^{-}, \mathrm{O}_{2}^{2-}, \mathrm{F}_{2}$ and $\mathrm{O}_{2}^{+}, \mathrm{O}_{2}^{-}$ has the highest bond order.

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

Accepted Answer

Both Statement I and Statement II are false

Answer

Both Statement I and Statement II are true

Answer

Statement I is true but Statement II is false

Answer

Statement I is false but Statement II is true

Molecules		B.O.
$\mathrm{O}_{2}^{+}$	$\rightarrow$	2.5
$\mathrm{O}_{2}^{-}$	$\rightarrow$	1.5
$\mathrm{O}_{2}^{2-}$	$\rightarrow$	1
$\mathrm{~F}_{2}$	$\rightarrow$	1

JEE Main 2026 — 28 January, Morning Shift — Question 51

Answer: A

Step-by-step solution

Practise Chemical Bonding