1.

2.79 g of an organic compound when heated in Carius tube with cone. HNO_3 " and "H_3PO_4 formed converted into MgNH_4.PO_4 ppt. The ppt. on heating gave 1.332 g of Mg_2P_2O_7.The percentage of P in the compound is

Answer»

<P>23.33
13.33
33.33
26.66

Solution :`% of P = (62 XX 1.332 xx 100)/(222xx2.79)=13.33`


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