JEE Main 2024 Chemistry question
In qualitative test for identification of presence of phosphorous, the compound is heated with an oxidising agent. Which is further treated with nitric acid and ammonium molybdate respectively. The yellow coloured precipitate obtained is:
Answer: (C)
Solution
Phosphorus is oxidised to phosphate, which gives ammonium phosphomolybdate, (NH₄)₃PO₄·12MoO₃, as a yellow precipitate.