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Saturday, 31 October

JEE Main 2020 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 5 September 2020, Shift 1, Chemistry Q35

Question 35 of 75 in this shift, Chemistry question 10 of 25.

The equation that represents the water-gas shift reaction is :
  1. (1)C(s)+H2O(g)→1270 KCO(g)+H2(g)\mathrm{C(s) + H_2O(g)} \xrightarrow{1270\ \mathrm{K}} \mathrm{CO(g) + H_2(g)}
  2. (2)CH4(g)+H2O(g)→Ni1270 KCO(g)+3 H2(g)\mathrm{CH_4(g) + H_2O(g)} \xrightarrow[\mathrm{Ni}]{1270\ \mathrm{K}} \mathrm{CO(g) + 3\,H_2(g)}
  3. (3)CO(g)+H2O(g)→Catalyst673 KCO2(g)+H2(g)\mathrm{CO(g) + H_2O(g)} \xrightarrow[\mathrm{Catalyst}]{673\ \mathrm{K}} \mathrm{CO_2(g) + H_2(g)}Official answer
  4. (4)2 C(s)+O2(g)+4 N2(g)→1273 K2 CO(g)+4 N2(g)\mathrm{2\,C(s) + O_2(g) + 4\,N_2(g)} \xrightarrow{1273\ \mathrm{K}} \mathrm{2\,CO(g) + 4\,N_2(g)}

Official answer

Option 3

NTA final key (Sep 2020).

Chapter
Hydrogen
Topic
Hydrogen and Hydrides
Idea tested
Water-Gas Shift Reaction

Same idea in other shifts

Asked 3× in all
  1. 10 Apr 2023, Shift 1 · Q65Given below are two reactions, involved in the commercial production of dihydrogen (H2\mathrm{H_2}). The two reactions are carried out at…EasySingle correct
  2. 15 Apr 2023, Shift 1 · Q66During water-gas shift reactionEasySingle correct

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 108 of the 174 JEE Main shifts held from 2017 to 2026.