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JEE Advanced 2022 Paper 1 · Chemistry · Solutions, Solid State and Surface Chemistry · easy

Match the industrial reactions in List-I with the catalyst or promoter used in List-II. N2+3H2→2NH3 | 1. CuCl2 at about 720 K | | Q.…

Single correct option

Match the industrial reactions in List-I with the catalyst or promoter used in List-II.

| List-I | List-II |
|---|---|
| P. N2+3H2→2NH3\mathrm{N_2+3H_2\to2NH_3} | 1. CuCl2\mathrm{CuCl_2} at about 720 K720\ \mathrm{K} |
| Q. 4NH3+5O2→4NO+6H2O\mathrm{4NH_3+5O_2\to4NO+6H_2O} | 2. Pt–Rh gauze at about 1100 K1100\ \mathrm{K} |
| R. 2SO2+O2→2SO3\mathrm{2SO_2+O_2\to2SO_3} | 3. V2O5\mathrm{V_2O_5} at about 720 K720\ \mathrm{K} |
| S. 4HCl+O2→2Cl2+2H2O\mathrm{4HCl+O_2\to2Cl_2+2H_2O} | 4. Finely divided iron with Mo as promoter |
| | 5. Anhydrous AlCl3\mathrm{AlCl_3} |
  1. A. P→4, Q→2, R→3, S→1
  2. B. P→4, Q→3, R→2, S→1
  3. C. P→1, Q→2, R→3, S→4
  4. D. P→4, Q→2, R→5, S→1
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Answer: (A) P→4, Q→2, R→3, S→1

P: the Haber process uses finely divided iron with molybdenum (or K2O/Al2O3\mathrm{K_2O/Al_2O_3}) as a promoter at about 700700 K and 200200 atm: 4. Q: the Ostwald process burns ammonia over a Pt–Rh gauze at about 11001100 K, giving NO: 2. R: the Contact process oxidises SO2\mathrm{SO_2} over V2O5\mathrm{V_2O_5} at 720720–770770 K: 3. S: the Deacon process oxidises HCl with air over CuCl2\mathrm{CuCl_2} at about 720720 K: 1. Entry 5, anhydrous AlCl3\mathrm{AlCl_3}, is the Friedel–Crafts catalyst and is not used for any of the reactions in List-I. Correct code: P→4, Q→2, R→3, S→1.
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Original question written in the JEE Advanced 2022 Paper 1 pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake