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The equivalent weight of phosphoric acid...

The equivalent weight of phosphoric acid `H_(3)PO_(4)` in the reaction, `NaOH+H_(3)PO_(4)rarrNaH_(2)PO_(4)+H_(2)O` is:

A

59

B

49

C

25

D

98

Text Solution

Verified by Experts

The correct Answer is:
D
Only one hydrogen of `H_(3)PO_(4)` is replaced i.e., its basicity =1
Equivalent mass=`("Molecular mass")/("Basicity")=(98)/(1)=98`
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