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p -Block elements - ll — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
With cold and dilute sodium hydroxide fluorine reacts to give
  • ✓
    $NaF$ and $O{F_2}$
  • B
    $NaF + {O_3}$
  • C
    ${O_2}\;{\rm{and}}\;{O_3}$
  • D
    $NaF + {O_2}$
✓

Answer

Correct option: A.
$NaF$ and $O{F_2}$
a
(a) 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.

$2NaOH + 2{F_2} \to 2NaF + O{F_2} + {H_2}O$

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