JEE Main 2020 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 8 January 2020, Shift 1, Chemistry Q42

Question 42 of 75 in this shift, Chemistry question 17 of 25, Section A.

Which of the following statement is not true for glucose ?

(1)The pentaacetate of glucose does not react with hydroxylamine to give oxime
(2)Glucose reacts with hydroxylamine to form oxime
(3)Glucose gives Schiff's test for aldehydeOfficial answer
(4)Glucose exists in two crystalline forms $\alpha$ and $\beta$

Official answer

Option 3

NTA final key (Jan 2020).

Chapter: Biomolecules
Topic: Carbohydrates
Idea tested: Reactions Confirming the Carbonyl Group

Same topic in other shifts

All Carbohydrates questions

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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.