JEE Main 2020 · ChemistryMultiple choiceSingle correctMediumRecall

JEE Main 4 September 2020, Shift 1, Chemistry Q42

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

What are the functional groups present in the structure of maltose ?

(1)One acetal and one ketal
(2)One acetal and one hemiacetalOfficial answer
(3)One ketal and one hemiketal
(4)Two acetals

Official answer

Option 2

NTA final key (Sep 2020).

Chapter: Biomolecules
Topic: Carbohydrates
Idea tested: Maltose Structure and Linkage

Same idea in other shifts

Asked 4× in all

27 Jun 2022, Shift 2 · Q78Given below are two statements. Statement I: Maltose has two $\alpha$ -D-glucose units linked at $\mathrm{C_1}$ and $\mathrm{C_4}$ and is a…EasyTwo statements
25 Feb 2021, Shift 2 · Q49Which of the following is correct structure of $\alpha$ -anomer of maltose ?MediumDiagram basedHas a figure
8 Jan 2020, Shift 2 · Q39Two monomers in maltose are :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.