NEET Chemistry Redox Reactions Questions Solved


The equivalent weight of phosphoric acid (H3PO4) in the reaction NaOH+H3PO4NaH2PO4+H2O is [AIIMS 1999]

(1) 25

(2) 49

(3) 59

(4) 98

(4) Molecular weight of H3PO4 is 98 and change in

its valency = 1 equivalent wt. of H3PO4

=MolecularweightChange  in  valency=981=98

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