Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 202126 FebruaryEvening Shift
Exam
JEE Main
Year
2021
Date
26 February
Shift
Evening Shift
Subject
Chemistry
Chapter
Biomolecules

JEE Main 2021 · 26 February · Evening Shift · Chemistry · Biomolecules

Match List- I with List- II . List- I List- II (a) Sucrose (i) β -...

Match List-II with List-IIII.

List-II List-IIII
(a) Sucrose (i) β−D−\beta - D -Galactose and β−D−\beta - D -Glucose
(b) Lactose (ii) α−D−\alpha - D -Glucose and β−D−\beta - D -Fructose
(c) Maltose (iii) α−D−\alpha - D -Glucose and α−D−\alpha - D -Glucose

Choose the correct answer from the options given below:

Options

  1. A(a)→(iii),(b)→(ii),(c)→(i)\left(a\right) \to \left(iii\right), \left(b\right) \to \left(ii\right), \left(c\right) \to \left(i\right)
  2. B(a)→(iii),(b)→(i),(c)→(ii)\left(a\right) \to \left(iii\right), \left(b\right) \to \left(i\right), \left(c\right) \to \left(ii\right)
  3. C(a)→(ii),(b)→(i),(c)→(iii)\left(a\right) \to \left(ii\right), \left(b\right) \to \left(i\right), \left(c\right) \to \left(iii\right)
  4. D(a)→(i),(b)→(iii),(c)→(ii)\left(a\right) \to \left(i\right), \left(b\right) \to \left(iii\right), \left(c\right) \to \left(ii\right)

Correct answer

C. (a)→(ii),(b)→(i),(c)→(iii)\left(a\right) \to \left(ii\right), \left(b\right) \to \left(i\right), \left(c\right) \to \left(iii\right)

Step-by-step solution

(1) Sucrose →α−D−\to \alpha - D -Glucose and β−D−\beta - D -Fructose

(2) Lactose →β−D−\to \beta - D -Galactose and β−D−\beta - D -Glucose

(3) Maltose →α−D−\to \alpha - D -Glucose and α−D−\alpha - D -Glucose

a→IIa \to II

b→Ib \to I

c→IIIc \to III

Sucrose is made up of two monomers α-D-Glucose and β-D-Fructose.

Lactose is made up of two monomers β-D-Galactose and β-D-Glucose.

Practice Biomolecules on Quantrex Academy →

More from Biomolecules

A known artificial sweetener X is composed of 4-chloro-4-deoxy- α -D-galactose and… JEE Advanced 2026The correct statement(s) regarding sugars is(are) Given: Specific rotations of L-(… JEE Advanced 2026In the following reaction sequence, major products X and Y are acyclic monomers. 500 mol… JEE Advanced 2026The incorrect statement from the following with respect to carbohydrates is: JEE Main 2026Which of the following amino acid will give violet coloured complex with neutral ferric… JEE Main 2026Consider the following reactions. Total number of electrons in the π bonds and lone pair… JEE Main 2026Match the LIST-I with LIST-II List-I Deficiency Disease List-II Vitamin A. Scurvy I.… JEE Main 2026Match the LIST-I with LIST-II List-I Amino acid List-II Positive reaction/Test for… JEE Main 2026 Full Biomolecules list All JEE Main PYQs