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The hydrogen atoms connected in the form...

The hydrogen atoms connected in the form of `-OH` bonds with central atom in an oxyacid is called acidic hydrogen, Oxyacid contains at least one acidic hydrogen.
Number of moles of NaOH required for the complete neutralisation of one mole of acid is maximum for :

A

`H_(2)S_(2)O_(7)`

B

`H_(3)PO_(2)`

C

`H_(3)PO_(4)`

D

`H_(4)P_(2)O_(5)`

Text Solution

Verified by Experts

The correct Answer is:
C
O.N of P in `H_(6)P_(6)O_(18)rarr+5`,
`H_(3)PO_(4)` has 3 replaceable H.
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