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Saturday, 31 October

JEE Main 2023 · ChemistryMultiple choiceSingle correctEasyConceptual

JEE Main 10 April 2023, Shift 1, Chemistry Q65

Question 65 of 90 in this shift, Chemistry question 5 of 30, Section A.

Given below are two reactions, involved in the commercial production of dihydrogen (H2\mathrm{H_2}). The two reactions are carried out at temperature “T1T_1” and “T2T_2”, respectively C(s)+H2O(g)→T1CO(g)+H2(g)\mathrm{C(s)} + \mathrm{H_2O(g)} \xrightarrow{T_1} \mathrm{CO(g)} + \mathrm{H_2(g)} CO(g)+H2O(g)→CatalystT2CO2(g)+H2(g)\mathrm{CO(g)} + \mathrm{H_2O(g)} \xrightarrow[\text{Catalyst}]{T_2} \mathrm{CO_2(g)} + \mathrm{H_2(g)} The temperatures T1T_1 and T2T_2 are correctly related as
  1. (1)T1>T2T_1 > T_2Official answer
  2. (2)T1<T2T_1 < T_2
  3. (3)T1=T2T_1 = T_2
  4. (4)T1=100T_1 = 100 K, T2=1270T_2 = 1270 K

Official answer

Option 1

NTA final key.

Chapter
Hydrogen

Same idea in other shifts

Asked 3× in all
  1. 15 Apr 2023, Shift 1 · Q66During water-gas shift reactionEasySingle correct
  2. 5 Sep 2020, Shift 1 · Q35The equation that represents the water-gas shift reaction is :EasySingle 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.