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Question

A balanced equation for the conversion of phosphorus to phosphoric acid is given by :


  1. P+5HNO3H2O+H3PO2+5NO2
  2. P+3HNO3H2O+H3PO4+3NO2
  3. P+5HNO3H2O+H3PO4+5NO2
  4. P+5HNO3H2O+H2PO5+5NO2

A
P+3HNO3H2O+H3PO4+3NO2
B
P+5HNO3H2O+H3PO2+5NO2
C
P+5HNO3H2O+H2PO5+5NO2
D
P+5HNO3H2O+H3PO4+5NO2
Solution
Verified by Toppr

Oxidation of red phosphorous(P) by nitric acid (HNO3) yields phosphoric acid (H3PO4).

P+5HNO3H2O+H3PO4+5NO2

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Similar Questions
Q1
9.3 g of phosphorous was used in the reaction shown.

P+5HNO3H3PO4+H2O+5NO2

Calculate the number of moles of phosphorus taken.

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Q2
P+5HNO3H3PO4+H2O+5NO2
What would be the volume of steam produced from 6.2 g of phosphorus at STP ?
[H=1;N=14;O=16;P=31]
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Q3
H2O+H3PO4H3O++H2PO4; pK1=2.15
H2O+H2PO4H3O++H2PO24; pK2=7.20

Hence, pH of 0.01M NaH2PO4 is:

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Q4
9.3 g of phosphorous was taken in the reaction shown:

P+5HNO3H3PO4+H2O+5NO2

Calculate the volume of NO2 produced at S.T.P..

[H = 1, N = 14, P = 31, O = 16]

View Solution
Q5
P+5HNO3H3PO4+H2O+5NO2

The mass of phosphoric acid that can be prepared from 6.2 g of phosphorous and the mass of HNO3 that will be consumed at the same time is respectively :
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