The shape of a molecule depends on which factor?

Select the molecule in which all the atoms may lie on a single plane.

Which of the following statements are true about the $S_8$ molecule?
$I.$ There are no $p_{\pi}-p_{\pi}$ bonds present in the molecule.
$II.$ There are eight lone pairs of electrons in total.
$III.$ Each $S$ atom is $sp^3$ hybridized.

What is the correct mode of hybridization of the central atom in the following compounds: $NO_2^+$,$SF_4$,$PF_6^-$?

Choose the correct code of characteristics for the given order of hybrid orbitals of the same atom,$sp < sp^2 < sp^3$:
$(i)$ Electronegativity
$(ii)$ Bond angle between same hybrid orbitals
$(iii)$ Size
$(iv)$ Energy level

On the transformation $PCl_5 \to PCl_6^-$,what changes will take place?