Properties of Dihydrogen — Prelims Questions

Which of the following statements about the physical properties of dihydrogen is INCORRECT?

Which of the following reactions correctly represents the reduction of a metal oxide by dihydrogen?

The bond dissociation enthalpy of $H_2$ is $435.88,\text{kJ/mol}$. What is the primary implication of this value for the chemical reactivity of dihydrogen at room temperature?

Which of the following catalysts is commonly used for the hydrogenation of vegetable oils?

When dihydrogen reacts with halogens, the reactivity order is $F_2 > Cl_2 > Br_2 > I_2$. What is the primary reason for this trend?

Which of the following statements about ortho and para forms of dihydrogen is correct?