Question:
Orthophosphorus acid on disproportionation gives PH$_3$, and another oxoacid of phosphorus X. The basicity of X is
Orthophosphorus acid on disproportionation gives PH$_3$, and another oxoacid of phosphorus X. The basicity of X is
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Basicity refers to the number of replaceable protons in an acid. Phosphoric acid has 3 replaceable protons.
Updated On: Jun 4, 2025
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The Correct Option is C
Solution and Explanation
Orthophosphorus acid undergoes disproportionation to form phosphine (PH\(_3\)). The oxoacid X is likely to be phosphoric acid (H₃PO₄), which has a basicity of 3 as it can donate 3 protons. Therefore, the basicity of X is 3.
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