MCQ
Ionic radii of
- A$Ti^{+4} < Mn^{+7}$
- B$^{35}Cl^-< \,^{37}Cl^-$
- C$K^+ > S^{-2}$
- ✓$P^{+3} > P^{+5}$
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$[$ Given $: \sqrt{3}=1.73, \sqrt{2}=1.41]$

$C{H_3}C{H_2}CH = CHC{H_3}$ $\xrightarrow{X}C{H_3}C{H_2}COOH\, + \,C{H_3}COOH$
The $X$ is
