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P Block Elements question

2022 · 26 Jul · Shift 1 · Q2
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P Block Elements question

2022 · 26 Jul · Shift 1 · Q2

JEE MainChemistryP Block ElementsMCQ+4 / −1

Match List - I with List - II.

List I
(Processes / Reactions)
List II
(Catalyst)
(A) 2SO 2_22​(g) + O 2_22​(g) →\to→ 2SO 3_33​(g) (I) Fe(s)
(B) 4NH 3_33​(g) + 5O 2_22​(g) →\to→ 4NO(g) + 6H 2_22​ O(g) (II) Pt(s) −-− Rh(s)
(C) N 2_22​(g) + 3H 2_22​(g) →\to→ 2NH 3_33​(g) (III) V 2_22​ O 5_55​
(D) Vegetable oil(l) + H 2→_2 \to2​→ Vegetable ghee(s) (IV) Ni(s)

Choose the correct answer from the options given below :

  1. A
    (A)−(III),(B)−(I),(C)−(II),(D)−(IV)(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{II}),(\mathrm{D})-(\mathrm{IV})(A)−(III),(B)−(I),(C)−(II),(D)−(IV)
  2. B
    (A)−(III),(B)−(II),(C)−(I),(D)−(IV)(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{IV})(A)−(III),(B)−(II),(C)−(I),(D)−(IV)
  3. C
    (A)−(IV),(B)−(III),(C)−(I),(D)−(II)(\mathrm{A})-(\mathrm{IV}),(\mathrm{B})-(\mathrm{III}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{II})(A)−(IV),(B)−(III),(C)−(I),(D)−(II)
  4. D
    (A)−(IV),(B)−(II),(C)−(III),(D)−(I)(\mathrm{A})-(\mathrm{IV}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{III}),(\mathrm{D})-(\mathrm{I})(A)−(IV),(B)−(II),(C)−(III),(D)−(I)
View written solutionFree

Correct answer: B

  1. We match each industrial reaction with its well-known catalyst.

  2. Reaction (A)(A)(A): 2SO2(g)+O2(g)→2SO3(g)2SO_2(g) + O_2(g) \to 2SO_3(g)2SO2​(g)+O2​(g)→2SO3​(g) This is the key step of the Contact process. Catalyst used: V2O5V_2O_5V2​O5​ So, A→(III)A \to (III)A→(III)

  3. Reaction (B)(B)(B): 4NH3(g)+5O2(g)→4NO(g)+6H2O(g)4NH_3(g) + 5O_2(g) \to 4NO(g) + 6H_2O(g)4NH3​(g)+5O2​(g)→4NO(g)+6H2​O(g) This is oxidation of ammonia in the Ostwald process. Catalyst used: Pt-Rh gauze\text{Pt-Rh gauze}Pt-Rh gauze So, B→(II)B \to (II)B→(II)

  4. Reaction (C)(C)(C): N2(g)+3H2(g)→2NH3(g)N_2(g) + 3H_2(g) \to 2NH_3(g)N2​(g)+3H2​(g)→2NH3​(g) This is the Haber process. Catalyst used: finely divided iron. So, C→(I)C \to (I)C→(I)

  5. Reaction (D)(D)(D): Vegetable oil(l)+H2→Vegetable ghee(s)\text{Vegetable oil}(l) + H_2 \to \text{Vegetable ghee}(s)Vegetable oil(l)+H2​→Vegetable ghee(s) This is hydrogenation of vegetable oils. Catalyst used: NiNiNi So, D→(IV)D \to (IV)D→(IV)

  6. Final matching: A−(III),  B−(II),  C−(I),  D−(IV)A-(III),\; B-(II),\; C-(I),\; D-(IV)A−(III),B−(II),C−(I),D−(IV)

  7. Compare with options: This corresponds to Option B.

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