Chemistry - Hydrogen and Its compound Question with Solution | TestHub

Statement (A) is incorrect because the bond dissociation energy of D₂ (443.35 kJ/mol) is actually higher than that of H₂ (435.88 kJ/mol).

Statement (B) is incorrect because dihydrogen is non-polar and therefore sparingly soluble (extremely low solubility) in water.

Statement (C) is incorrect because terrestrial deuterium exists predominantly in the form of HD (hydrogen deuteride) rather than D₂.

Statement (D) is correct as tritium is a radioactive isotope that emits low-energy ${\beta }^{-}$ particles, which means it is excluded from the incorrect list.