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Question

Chemistry Question on p -Block Elements

P2O5P_2O_5 is heated with water to give

A

hypophosphorous acid

B

phosphorous acid

C

hypophosphoric acid

D

orthophosphoric acid

Answer

orthophosphoric acid

Explanation

Solution

When P2O5(orP4O10)P_2O_5 (or \, P_4O_{10}) is heated with water, it
form orthophosphoric acid (H3PO4)(H_3PO_4).
P4O10+6H2O4H3PO4\, \, \, \, \, \, \, P_4O_{10} \, + \, 6H_2O \, \longrightarrow\, 4H_3PO_4