Question

Fluorine reacts with water to give ?

• A. hydrogen fluoride and oxygen
• B. hydrogen fluoride and ozone
• C. hydrogen fluoride and oxygen fluoride
• D. hydrogen fluoride, oxygen and ozone

Answer 1

The correct option is D

hydrogen fluoride, oxygen and ozone

The explanation for the correct option:

Option (D) - Hydrogen fluoride, oxygen, and ozone

• Fluorine reacts with water to give the products like hydrogen fluoride, oxygen, and ozone.
• As fluorine is the most electronegative halogen in its respective group so its reaction with water is different from other halogens.
• The reaction of fluorine with water is as follows,

$$\begin{gathered} \underset{\left(\mathrm{Fluorine}\right)}{2{\mathrm{F}}_2\left(\mathrm{g}\right)}+\underset{\left(\mathrm{Water}\right)}{2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}⟶\underset{(\mathrm{Hydrogen}\mathrm{fluoride})}{4\mathrm{HF}\left(\mathrm{aq}\right)}+\underset{\left(\mathrm{Oxygen}\right)}{{\mathrm{O}}_2\left(\mathrm{g}\right)} \\ \underset{\left(\mathrm{Fluorine}\right)}{3{\mathrm{F}}_2\left(\mathrm{g}\right)}+\underset{\left(\mathrm{Water}\right)}{3{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}⟶\underset{(\mathrm{Hydrogen}\mathrm{fluoride})}{6\mathrm{HF}\left(\mathrm{aq}\right)}+\underset{\left(\mathrm{Ozone}\right)}{{\mathrm{O}}_3\left(\mathrm{g}\right)} \end{gathered}$$

Explanation for the incorrect option:

Option(A) : Hydrogen fluoride and oxygen

• Fluorine reacts with water to give the products like Hydrogen Fluoride, Oxygen, and Ozone.
• Both Oxygen and Ozone along with Hydrogen fluoride have been formed as the product.
• In option (A), not all the products have been given.

Options (B) : Hydrogen fluoride and ozone

• Fluorine reacts with water to give the products like Hydrogen fluoride, Oxygen, and Ozone.
• But in option B, not all the respective products have been given.

Options (C): Hydrogen fluoride and Oxygen fluoride

• When we react fluorine with water it gives the products as hydrogen fluoride, oxygen, and ozone.
• Hydrogen fluoride and oxygen fluoride are not the respective products for the given reaction.

Hence, fluorine reacts with water to give hydrogen fluoride, oxygen, and ozone (Option D).