# In a molecule of pyrophosphoric acid,

Question:

In a molecule of pyrophosphoric acid, the number of $P$ $\mathrm{OH}, \mathrm{P}=\mathrm{O}$ and $\mathrm{P}-\mathrm{O}-\mathrm{P}$ bonds/ moiety(ies) respectivel are:

1. 2,4 and 1

2. 3,3 and 3

3. 4,2 and 0

4. 4,2 and 1

Correct Option: , 4

Solution: