Q.
An organic compound containing phosphorous is heated with Na2O2 and then boiled with conc. HNO3. To this solution a reagent ‘X’ is added. The oxidation state of phosphorous in the canary yellow coloured compound ‘Y’ formed is
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a
+1
b
+3
c
+4
d
+5
answer is D.
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Detailed Solution
Organic compound→b) Conc. HNO3a) Na2O2H3PO4 H3PO4+12(NH4)2MoO4+21HNO3→ (NH4)3PO4.12MoO3+21NH4NO3+12H2O Canary yellow coloured precipitate is ammonium phospho molybdate, (NH4)3PO4.12MoO3 N-3H+143P+5O-24.12M+6oO3-2
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