In the neutralization process of `H_3PO_4 and NaOH`, the number of buffers formed will be -

For H_3PO_4 and H_3PO_3 the correct choice is:

Basicity of H_3 PO_4 and H_3 PO_3 are

Statement-1: Heat of neutralisation of H_(3)PO_(4) with NaOH is more than that of HCl with NaOH. Statement-2: H_(3)PO_(4) is a triprotic acid and hence release more heat on complete neutralization, while HCl is a monoprotic acid.

One mole of H_3PO_3 on reaction with excess of NaOH gives :

One mole of H_3PO_3 on reaction with excess of NaOH gives :

For H_3 PO_3 and H_3 PO_4 , the correct choice is

One mole of H_3PO_3 on reaction with excess of NaOH gives: