P Block Elements

$\mathrm{H}_2 \mathrm{~S}<\mathrm{H}_2 \mathrm{O}<\mathrm{H}_2 \mathrm{Se}<\mathrm{H}_2 \mathrm{Te}$ (Boiling point)

$\mathrm{N}_2 \mathrm{O}<\mathrm{NO}<\mathrm{N}_2 \mathrm{O}_3<\mathrm{N}_2 \mathrm{O}_4<\mathrm{N}_2 \mathrm{O}_5$ (Acidic nature)

$\mathrm{HI}<\mathrm{HCl}<\mathrm{HBr}<\mathrm{HF}$ (Acidic nature)

$\mathrm{H}_2 \mathrm{O}<\mathrm{H}_2 \mathrm{~S}<\mathrm{H}_2 \mathrm{Se}<\mathrm{H}_2 \mathrm{Te}$ (Bond angle)