Is there no change in oxidation number in neutralization reaction ?What is the equivalent weight of H3PO4 in below reaction ?H3PO4+Ca(OH)2-------------->CaHPO4+2H20IN THE BOOK THEY HAVE GIVEN ===== M.W/2IS IT RIGHT ? I know as per structure it should have====== M.W/3

Dear Karike

Equivalent weight also depends on reaction not only on structure. In this reaction 2 oh are replaced. So equivalent weight would be MW/2. If this reaction is not given then answer would have been 3.

All the best.

AKASH GOYAL

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