Question

How many P-O-P bonds are there in Pyrophosphoric acid?

Answer 1

Pyrophosphoric acid:

• Pyrophosphoric acid has a molecular formula of ${\mathrm{H}}_4{\mathrm{P}}_2{\mathrm{O}}_7$.
• It is an odorless, colorless, and corrosive acid.
• The structural formula of Pyrophosphoric acid is as shown below,

• There is only one $\mathrm{P}-\mathrm{O}-\mathrm{P}$ bond. Also, $4\mathrm{O}-\mathrm{H},6\mathrm{P}-\mathrm{O}\mathrm{\sigma }$ bonds and $2\mathrm{P}-\mathrm{O}\mathrm{\pi }$ bonds.

Hence, there is only single $\mathrm{P}-\mathrm{O}-\mathrm{P}$ bond in Pyrophosphoric acid