Which one of the following statements is incorrect

Options

A. Atomic hydrogen is produced when `H_(2)` molecules at a high temperature are irradiated with UV radiation.
B. At around 2000 K, the dissociation of dihydrogen into its atoms is nearly 8.1%
C. Bond dissociation enthalpy of `H_2` is highest among diatomic gaseous molecules which contain a single bond.
D. Dihydrogen is produced on reacting zinc with HCl as well as `NaOH_(aq)`

Answer

B

Explanation

The H − H bond dissociation enthalpy is the highest for a single bond between two atoms of any element. It is because of this factor that the dissociation of dihydrogen into its atoms is only `~ 0.081 %` around 2000K . The atomic hydrogen is produced at a high temperature in an electric arc or under ultraviolet radiations.
`Zn + 2HCl to ZnCl_(2) + H_(2)`
`Zn + 2NaOH to Na_(2)ZnO_(2) + H_(2)`