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Question

Give the basicity of H3PO4.


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Solution

Basicity:

  1. The number of hydrogen atoms that a base can replace in acid is defined as basicity.
  2. H3PO4 or orthophosphoric acid has 3 P-OH bonds and 1P=O as shown

3. It possesses three P-OH bonds that can be ionized.

Therefore, it is tribasic in nature or basicity of H3PO4 is 3.


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