What is the basicity of orthophosphoric acid?

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Question

(B) The chemical formula of orthophosphoric acid is $H_3PO_4$.In its structure,there are three $P-OH$ bonds.The basicity of an oxoacid is determined b

Vedclass · Accepted Answer

$3$

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(B) The chemical formula of orthophosphoric acid is $H_3PO_4$.In its structure,there are three $P-OH$ bonds.The basicity of an oxoacid is determined by the number of $P-OH$ groups present in its structure,as these hydrogen atoms are ionizable.Since $H_3PO_4$ has three $P-OH$ groups,it is tribasic,meaning its basicity is $3$.

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