Q: Which one of the following statements about dihydrogen (H₂) is not correct?
(a)H₂ is lighter than air and insoluble in water.
(b)H₂ is inert at room temperature due to high H–H bond dissociation enthalpy.
(c)H₂ reacts with alkali metals at high temperature to yield metal hydrides.
(d)A mixture of NO₂ and H₂ is known as Syngas.
Correct Answer: (b)
Detailed explanation coming soon.