First slide

Chemical properties

Question

With cold and dilute sodium hydroxide fluorine reacts to give

Easy

A

$NaF and {OF}_{2}$
B

$NaF + O_{3}$
C

$O_{2} and O_{2}$
D

$NaF + O_{2}$

Solution

Fluorine is the most electronegative element. It does not form oxyfluoxides like other halogens. If reacts with NaOH to form sodium fluoride and oxygen fluoride.
$2 NaOH + 2 F_{2} \to 2 NaF + {OF}_{2} + H_{2} O$

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