JEE Main - 25 Feb 2021 Shift 2

$\mathrm{O}-\mathrm{O}$ bond length in ${\mathrm{H}}_2{\mathrm{O}}_2$ is $\underset{¯}{\mathrm{X}}$ than the $\mathrm{O}-\mathrm{O}$ bond length in ${\mathrm{F}}_2{\mathrm{O}}_2$. The $\mathrm{O}-\mathrm{H}$ bond length in ${\mathrm{H}}_2{\mathrm{O}}_2$ is $\underset{¯}{Y}$ than that of the $\mathrm{O}-\mathrm{F}$ bond in ${\mathrm{F}}_2{\mathrm{O}}_2$. Choose the correct option for $\underset{¯}{\mathrm{X}}$ and $\underset{¯}{\mathrm{Y}}$ from the given below.

The magnetic behaviour of ${\mathrm{Li}}_2\mathrm{O}$, ${\mathrm{Na}}_2{\mathrm{O}}_2$ and ${\mathrm{KO}}_2$, respectively, are

According to $\mathrm{MO}$ theory the bond orders for ${{\mathrm{O}}_2}^{2-}$, $\mathrm{CO}$ and ${\mathrm{NO}}^{+}$ respectively, are

Match List I with List II

Choose the correct answer from the options given below:

For ${\mathrm{OF}}_2$ molecule consider the following:
(A) Number of lone pairs on oxygen is $2$.
(B) $\mathrm{FOF}$ angle is less than $104.5°$.
(C) Oxidation state of $\mathrm{O}$ is $-2$.
(D) Molecule is bent '$\mathrm{V}$' shaped.
(E) Molecular geometry is linear.

Correct options are:

Match List I with List II

Choose the correct answer from the options given below :

Amongst the following, the number of species having the linear shape is

${\mathrm{XeF}}_2,{\mathrm{I}}_3^{+},{\mathrm{C}}_3{\mathrm{O}}_2,{\mathrm{I}}_3^{-},{\mathrm{CO}}_2,{\mathrm{SO}}_2,{\mathrm{BeCl}}_2$ and ${\mathrm{BCl}}_2^{\ominus }$

Resonance in carbonate ion $\left({\mathrm{CO}}_3^{2-}\right)$ is

Which of the following is true?