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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceSingle correctMediumRecall

JEE Main 27 July 2022, Shift 1, Chemistry Q77

Question 77 of 90 in this shift, Chemistry question 17 of 30, Section A.

A sugar ‘X’ dehydrates very slowly under acidic condition to give furfural which on further reaction with resorcinol gives the coloured product after sometime. Sugar ‘X’ is
  1. (1)AldopentoseOfficial answer
  2. (2)Aldotetrose
  3. (3)Oxalic acid
  4. (4)Ketotetrose

Official answer

Option 1

NTA final key.

Chapter
Biomolecules
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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.