Q29 / 155 · WBJEE 2018 · Chemistry

At room temperature, the reaction between water and fluorine produces

  • A
    $\mathrm{HF}$ and $\mathrm{H}_{2} \mathrm{O}_{2}$
  • B
    $\mathrm{HF}, \mathrm{O}_{2}$ and $\mathrm{F}_{2} \mathrm{O}_{2}$
  • Correct answer
    C
    $F^{-}, O_{2}$ and $H^{+}$
  • D
    HOF and HF

Solution

At room temperature, the reaction between water and fluorine produces $\mathrm{F}^{-}, \mathrm{O}_{2}$ and $\mathrm{H}^{+}$ Fluorine, being non-polar molecule, readily dissolves with water and forms mixture of oxygen and ozone as shown below $$ \begin{array}{l} 2 \mathrm{F}_{2}+2 \mathrm{H}_{2} \mathrm{O} \longrightarrow 4 \mathrm{HF}+\mathrm{O}_{2} \\ 3 \mathrm{F}_{2}+3 \mathrm{H}_{2} \mathrm{O} \longrightarrow 6 \mathrm{HF}+\mathrm{O}_{3} \end{array} $$ HF exist as $\mathrm{H}^{+}$ and $\mathrm{F}^{-}$ in a solution.

Hence, the correct answer is option: 'C'.

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