Q.

ln Ostwald method of manufacture of HNO3 the reaction of NH3 with oxygen is carried out using (Select the correct option) :

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a

800o- 900oC temperature

b

200-300 bar pressure

c

Pt-lr or Pt-Rh gauze catalyst

d

all of these

answer is D.

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Detailed Solution

These are real industrial conditions for the manufacture of HNO3 from NH3.NH3 +O2 →500KPt or RhNO↑+ H2O (step1)NO +O2 ⇔NO2(step 2)NO2 H2O →HNO3+ NO(step3 )
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ln Ostwald method of manufacture of HNO3 the reaction of NH3 with oxygen is carried out using (Select the correct option) :