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Question

Select the correct option(s) for the Ostwald process.


A

Oxidation of ammonia NH3 in catalytic chamber gives nitrogen dioxide.

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B

Oxidation of ammonia NH3 in catalytic chamber gives nitric oxide.

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C

Absorption of nitric oxide NO in oxidation chamber gives nitric acid HNO3.

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D

Absorption of nitrogen dioxide in water gives nitric acid HNO3.

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Solution

The correct options are
B

Oxidation of ammonia NH3 in catalytic chamber gives nitric oxide.


D

Absorption of nitrogen dioxide in water gives nitric acid HNO3.


In ostwald process,

Step 1: Oxidation of ammonia in catalytic chamber at 800oC.

4NH3+5O2800oC−−−−Pt.guage4NO+6H2O+Heat

Step 2: Oxidation of nitric oxide at 50oC.

2NO+O250oC−−2NO2

Step 3:Absorption of nitrogen dioxide in water.

4NO2+O2+2H2O4HNO3


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