MCQ
$O_2 F_2$ is an unstable yellow orange solid and $H_2O_2$ is a colourless  liquid, both have $O-O$ bond and $O-O$ bond length in $H_2O_2$ and $O_2F_2$ respectively is
  • A
    $1.22\, \overset{o}{\mathop{A}}\,,\, 1.48\, \overset{o}{\mathop{A}}\,$
  • $1.48 \,\overset{o}{\mathop{A}}\,, \,1.22\, \overset{o}{\mathop{A}}\,$
  • C
    $1.22\, \overset{o}{\mathop{A}}\, , \,1.22\, \overset{o}{\mathop{A}}\,$
  • D
    $1.48\, \overset{o}{\mathop{A}}\,,\, 1.48\, \overset{o}{\mathop{A}}\,$

Answer

Correct option: B.
$1.48 \,\overset{o}{\mathop{A}}\,, \,1.22\, \overset{o}{\mathop{A}}\,$
b
According to Bent's Rule in $O_2F_2$, there is more $p-$ character in $O-F$ bond  in comparison to $O-H$ bond in $H_2O_2$; hence $s-$ character in $O-O$  bond is greater in $O_2F_2.$

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