Which one of the following oxides is expected to exhibit paramagnetic behaviour?

The reaction of the type $2X_2 + S \to SX_4$ is shown by sulphur when $X$ is

Acid strength of oxyacids of chlorine follows the order:

$X_2$ reacts with water to form $HX_{(aq)}$ and $HOX_{(aq)}$. $Y_2$ reacts with water to form $O_{2(g)}$,$Y^{-}_{(aq)}$ and $H^{+}_{(aq)}$. $Z_2$ does not react with water. $X_2, Y_2, Z_2$ are respectively

Which of the following represents the correct order of oxidising power of halogens in water?

Which among the following factors is the most important in making fluorine the strongest oxidizing halogen?