Which halide of magnesium has highest ionic character?

Which of the following mixture is called aqua regia?

The stability of inter halogen compounds follows the order ____.

Which of the following element does NOT form diatomic molecule?

Electron configuration of only one $\mathrm{p}-$block element is exceptional. One molecule of that element consists of how many atoms of it?

The formation of ${{\text{O}}_{\text{2}}}^{\text{+}}{\text{[PtF}}_{\text{6}}{\text{]}}^{\text{-}}$ is the basis for the formation of xenon fluorides. This is because ______.