A , B and C are three biomolecules. The results of the tests performed on them are given below: Molisch's test Barfoed Test Biuret Test A Positive Negative Negative B Positive Positive Negative C Negative Negative Positive A , B and C are respectively:

A = Lactose, B = Glucose, C = Albumin

A = Glucose, B = Fructose C = Albumin

A = Lactose, B = Glucose, C = Alanine

A = Lactose, B = Fructose, C = Alanine

Match List I and List II List I List II Test Functional group / Class of Compound (A) Molisch's Test (I)Peptide (B) Biuret Test (II)Carbohydrate (C) Carbylamine Test (III) Primary amine (D) Schiff's Test (IV) Aldehyde Choose the correct answer from the options given below:

(A) - II, (B) - I, (C) - III, (D) - IV

(A) - I, (B) - II, (C) - III, (D) - IV

(A) - III, (B) - IV, (C) -I, (D) - II

(A) - III, (B) - IV, (C) -II, (D) - I

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Ketoses give Seliwanoff’s test faster than Aldoses. Reason (R): Ketoses undergo β -elimination followed by formation of furfural. In the light of the above statements, choose the correct answer from the options given below:

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true but (R) is not the correct explanation of (A)

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 28 - Biomolecules>JEE Main 16 March 2021 Shift 1>Q 8

EASY

JEE Main

IMPORTANT

Earn 100

Which among the following pairs of Vitamins is stored in our body relatively for longer duration?

71.21% studentsanswered this correctly

Important Questions on Biomolecules

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 28 - Biomolecules>JEE Main - 9th January 2020 Shift 2>Q 9

A, B

and

C

are three biomolecules. The results of the tests performed on them are given below:

	Molisch's test	Barfoed Test	Biuret Test
$A$	Positive	Negative	Negative
$B$	Positive	Positive	Negative
$C$	Negative	Negative	Positive

A, B

and

C

are respectively:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 28 - Biomolecules>JEE Main - 9th January 2019 Shift 2>Q 10

The correct sequence of amino acids present in the tripeptide given below is:
Question Image

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 28 - Biomolecules>JEE Main - 9th January 2019 Shift 1>Q 11

The increasing order of $pKa$ of the following amino acids in aqueous solution is

Glycine, Aspartate, Lysine, Arginine.

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 28 - Biomolecules>JEE Main - 9th April 2019 Shift 1>Q 12

Which of the following statements is not true about sucrose?

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 28 - Biomolecules>JEE Main - 9th April 2017>Q 13

The incorrect statement among the following is

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 28 - Biomolecules>JEE Main - 9th April 2016>Q 14

Consider the following sequence for aspartic acid:

Question Image

The pH (Isoelectric point) of aspartic acid is:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 28 - Biomolecules>JEE Main - 8th January 2020 Shift 2>Q 15

Two monomers in maltose are:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 28 - Biomolecules>JEE Main - 8th January 2020 Shift 1>Q 16

Which of the following statement is not true for glucose?

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