JEE MAIN - Chemistry (2019 - 10th January Evening Slot - No. 9)

The pair that contains two P – H bonds in each of the oxoacids is
H3PO2 and H4P2O5
H4P2O5 and H4P2O6
H4P2O5 and H3PO3
H3PO3 and H3PO2

Explanation

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