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A colourless inorganic compound (P) deco...

A colourless inorganic compound (P) decomposes on heating to give two products (Q) and (R). (Q) is a colourless neutral gas with a sweet odour which when burnt with phosphorous produces a strong dehydrating agent (S) while (R) is a neutral liquid at room temperature. Identify P, Q, Rand S.

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`underset"(P)"(NH_4NO_3) overset(250^@C)to underset"(Q)"(N_2O) + underset"(R)"(2H_2O)`
`P_4 + underset"(Q)"(10N_2O) to underset"(S)"(P_4O_10) + 10N_2`
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MARVEL PUBLICATION-P-BLOCK ELEMENTS -TEST YOUR GRASP
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