Test (Q). A compound 'X' was fused with Na metal and the extract gave a white precipitate with AgNO_(3). The Lassaigne's extract gave red colouration with neutral FeCl_(3). Test R while compound 'Y' when fused with Na metal and subsequent analysis on its Lassaigne's extract did not give any characteristic test. Test S while compound Y on fusion with fusion mixture (sodium carbonate+potassium nitrate) or Na_(2)O_(2), followed by extraction, followed by addition of conc. HNO_(3) and ammonium molybdate gave a yellow precipitate Q. The chemical reaction taking place in Y, when it is fused with fusioni mixture is

Test (Q). A compound 'X' was fused with Na metal and the extract gave

1.	Test (Q). A compound 'X' was fused with Na metal and the extract gave a white precipitate with AgNO_(3). The Lassaigne's extract gave red colouration with neutral FeCl_(3). Test R while compound 'Y' when fused with Na metal and subsequent analysis on its Lassaigne's extract did not give any characteristic test. Test S while compound Y on fusion with fusion mixture (sodium carbonate+potassium nitrate) or Na_(2)O_(2), followed by extraction, followed by addition of conc. HNO_(3) and ammonium molybdate gave a yellow precipitate Q. The chemical reaction taking place in Y, when it is fused with fusioni mixture is
Answer» `3Na+P+4O to Na_(3)PO_(4)` `3Na_(2)CO_(3)+2P+[O] to 2Na_(3)PO_(4)+3CO_(2)` `3KNO_(2)+P+3Oto K_(3)PO_(4)+3NO_(2)+O_(2)` none of these Answer :B