MCQ
The element that oxidizes water to $\mathrm {O_2}$ with a large evolution of heat is:
- ✓$ \mathrm{F}_2 $
- B$ \mathrm{Cl}_2 $
- C$ \mathrm{Br}_2 $
- D$ \mathrm{I}_2 $
✓
Answer
Correct option: A.
$ \mathrm{F}_2 $
$ \mathrm{F}_2 $ is the most powerful oxidizing agent and evolves large amount of heat due to the formation of $H -$ bond with $ \mathrm{H_2O} ($It is also the most electronegative element$)$
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{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
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\end{array}\xrightarrow{{\begin{array}{*{20}{c}}
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{\,\,\,\,\,\,\,\,\,\,\,\,\,||} \\
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{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
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\end{array}\xrightarrow{{\begin{array}{*{20}{c}}
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