Question

Predict the type of linkage in $H_2{S}_2{O}_7$.

• A. Oxy linkage
• B. Peroxy linkage
• C. Direct linkage between central atom
• D. Double bond between central atom

Answer 1

The correct option is A Oxy linkage

Consider the oxidation state of S as 'x' in $H_2{S}_2{O}_7$
$\therefore 2x+7\times (-2)+2=0$
$\Rightarrow x=+6$
Thus calculated oxidation state of S = +6
Maximum oxidation of sulphur = number of valence electron = +6
$\because$ Oxidation state of S = maximum oxidation of sulphur
$\therefore$ Oxy bond is present in $H_2{S}_2{O}_7$