1.

A substance which gives a yellowprecipitate when boiled with an excess of nitric acidand ammonium molybdate and red precipitate with AgNO_3 is

Answer»

ORTHOPHOSPHATE
pyrophosphate
metaphosphate
hypophosphate

SOLUTION :`{:("Orthosphosphate" + "Amm.molybdate" underset(DELTA)overset(HNO_(3))to"yellow ppt."),(underset("Red ppt.")darr+AgNO_(3)):}`


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