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What is the basicity of H3PO4?...

What is the basicity of `H_3PO_4`?

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A molecule of `H_3PO_4` contains 3 P-OH bonds or groups which are ionisable. So basicity of `H_3PO_4` is 3 .
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A N EXCEL PUBLICATION-P-BLOCK ELEMENTS-QUESTION BANK
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