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P Block Elements question

2024 · 8 Apr · Shift 2 · Q20
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P Block Elements question

2024 · 8 Apr · Shift 2 · Q20

JEE MainChemistryP Block ElementsMCQ+4 / −1
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 :
  1. A
    Na3PO4⋅12MoO3\mathrm{Na}_3 \mathrm{PO}_4 \cdot 12 \mathrm{MoO}_3Na3​PO4​⋅12MoO3​
  2. B
    (NH4)3PO4⋅12(NH4)2MoO4\left(\mathrm{NH}_4\right)_3 \mathrm{PO}_4 \cdot 12\left(\mathrm{NH}_4\right)_2 \mathrm{MoO}_4(NH4​)3​PO4​⋅12(NH4​)2​MoO4​
  3. C
    MoPO4⋅21NH4NO3\mathrm{MoPO}_4 \cdot 21 \mathrm{NH}_4 \mathrm{NO}_3MoPO4​⋅21NH4​NO3​
  4. D
    (NH4)3PO4⋅12MoO3\left(\mathrm{NH}_4\right)_3 \mathrm{PO}_4 \cdot 12 \mathrm{MoO}_3(NH4​)3​PO4​⋅12MoO3​
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