Which of the following is isostructural with $CO_2$?

The number of lone pairs of electrons on the central $I$ atom in $I_{3}^{-}$ is $.......$

$A$ molecule has a $T$-shaped geometry. The total number of electron pairs in the valence shell of its central atom is:

Consider the following reaction:
$2Se_2Cl_2 \to 3Se + SeCl_4$
Choose the $CORRECT$ option regarding the product $SeCl_4$ (referred to as $A$ in the options).

Which of the following species has a pyramidal shape?

Given below are two statements:
Statement $I$: Aluminium upon reaction with $NaOH$ forms $[Al(OH)_6]^{3-}$ ion.
Statement $II$: The geometry of $ICl_4^-$,$ClO_3^-$,and $IBr_2^-$ is square planar,pyramidal,and linear respectively.
In the light of the above statements,choose the correct answer from the options given below: