NEET 2022
- Exam
- NEET
- Year
- 2022
- Subject
- Chemistry
- Chapter
- p Block Elements (Group 15, 16, 17 & 18)
NEET 2022 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)
Which of the following reactions is a part of the large scale...
Which of the following reactions is a part of the large scale industrial preparation of nitric acid?
Options
- A
- B
- C
- D
Correct answer
B.
Step-by-step solution
The balanced chemical equation involved in manufacturing of (\mathrm{HNO}_3) by Ostwald's process are shown as:
Step 1 Formation of nitric oxide (NO)
(4 \mathrm{NH}_3(\mathrm{~g})+5 \mathrm{O}_2(\mathrm{~g}) \xrightarrow[500 \mathrm{~K}, 9 \text{ bar }]{\stackrel{\mathrm{Pt} / \mathrm{Rh} \text{, gases- catalyst }}{ }} 4 \mathrm{NO}(\mathrm{g})+6 \mathrm{H}_2 \mathrm{O})
Step 2 Formation of nitrogen dioxide (\left(\mathrm{NO}_2\right))
(2 \mathrm{NO}(\mathrm{g})+\mathrm{O}_2(\mathrm{g}) \rightarrow 2 \mathrm{NO}_2(\mathrm{~g}))
Step 3 Absorption of (\mathrm{NO}_2) (Formation of (\mathrm{HNO}_3) )
(3 \mathrm{NO}_2(\mathrm{~g})+\mathrm{H}_2 \mathrm{O} \rightarrow 2 \mathrm{HNO}_3()+\mathrm{NO}(\mathrm{g}))