Learn

Friday, 9 October

JEE Main 2021 · ChemistryMultiple choiceMatch the listMediumRecall

JEE Main 18 March 2021, Shift 1, Chemistry Q33

Question 33 of 90 in this shift, Chemistry question 3 of 30, Section A.

Match List - I with List - II : List - I (Process) (a) Deacon's process (b) Contact process (c) Cracking of hydrocarbons (d) Hydrogenation of vegetable oils List - II (Catalyst) (i) ZSM-5 (ii) CuCl2\mathrm{CuCl_2} (iii) Particles 'Ni' (iv) V2O5\mathrm{V_2O_5} Choose the most appropriate answer from the options given below :
  1. (1)(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
  2. (2)(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
  3. (3)(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
  4. (4)(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)Official answer

Official answer

Option 4

NTA final key.

Chapter
Surface Chemistry
Topic
d-Block Elements
Idea tested
Specific d-Block Industrial Catalysts

Same idea in other shifts

Asked 3× in all
  1. 6 Apr 2026, Shift 1 · Q60The correct statements among the following are. A. Basic vanadium oxide is used in the manufacture of H2SO4\mathrm{H_2SO_4}. B. The spin-only…HardOther
  2. 29 Jan 2024, Shift 1 · Q70Match List I with List II LIST I (Substances) A. Ziegler catalyst B. Blood Pigment C. Wilkinson catalyst D. Vitamin B12\mathrm{B_{12}} LIST…EasyMatch the list

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.