Question

Predict the type of linkage in $H_4{P}_2{O}_7$.

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

Answer 1

The correct option is B Oxy linkage

Consider the oxidation state of P as 'x' in $H_4{P}_2{O}_7$
$\therefore +4+2x+7\times (-2)=0$
$\Rightarrow x=+5$
Thus calculated oxidation state of P = +5.
Maximum oxidation of phosphorous = number of valence electron = +5
$\because$ Calculated oxidation state of P = maximum oxidation of Phosphorous
$\therefore$ Oxy bond is present in $H_4{P}_2{O}_7$