In the reaction of phosphorous with conc. HNO 3 , the oxidized and reduced products respectively are

In the reaction of phosphorous with conc. HNO3, the oxidized and reduced products respectively are
  1. H3PO4,NO2
  2. H3PO2,NO
  3. H3PO3,N2O
  4. HPO3,NO

Solution

Concentrated nitric acid oxidises non–metals and their compounds.  Phosphorus is oxidised to phosphoric acid and nitric acid is reduced to nitrogen dioxide.

The reaction is shown below.

P4 + 20 HNO3→4H3PO4+20NO2+4H2O

 

Asked in: AP EAMCET 2022 (04 Jul Shift 2)

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