XâOH-H3PO2 ; YâOH-H4P2O6X and Y are respectively
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a
Red P , white P
b
white P , Red P
c
Red P , black P
d
white P , black P
answer is B.
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Detailed Solution
(I) white P4 when treated with alkali , forms a salt which then treated with acid produces H3PO22P4+3Ba(OH)2+6H2Oâ3Ba(H2PO2)2+2PH3 Ba(H2PO2)2âH+H3PO2(II) Red P4 when treated with alkali produces H4P2O6