Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


The charge of H2P2O7 is -1. 
And, therefore,
Oxidation number of Hydrogen is +1.
and for Oxygen, it is -2.
H3 gives, +3.
O7 gives -14.

Therefore, 3+2x-14=-1.
Therefore, x=+5.


the Oxidation number of P in H3P2O7 is,
Thank you.
Hope this will help you.
0 0 0
Oxidation number of P=5.5 
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts