p-Block elementsHard
Question
Select the correct statement.
Options
A.Ostwald′s method of preparation of HNO3 is based upon catalytic oxidation of NH3 by atmospheric oxygen.
B.HNO2 acts as both oxidising and reducing agents.
C.NO2 reacts with O3 to form N2O5.
D.All of these.
Solution
(A) 4NH3 + 5O2 
4NO (g) + 6H2O (g) ; principal reaction of Ostwald′s method of HNO3 manufacturing.
(B) HNO2 is weak oxidising agent and oxidises Fe2+ to Fe3+ and I- to I2 and it self reduced to N2O or NO. In contrary HNO2 is oxidised by KMnO4 and Cl2 forming NO3-.
(C) 2NO2 + O3 → N2O5 + O2
4NO (g) + 6H2O (g) ; principal reaction of Ostwald′s method of HNO3 manufacturing.(B) HNO2 is weak oxidising agent and oxidises Fe2+ to Fe3+ and I- to I2 and it self reduced to N2O or NO. In contrary HNO2 is oxidised by KMnO4 and Cl2 forming NO3-.
(C) 2NO2 + O3 → N2O5 + O2
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