Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202315 Apr 2023Morning ShiftChemistryBiomoleculesActual

Which is not true for arginine?

Options

  1. AIt has a fairly high melting point
  2. BIt is associated with more than one pK a values.
  3. CIt has high solubility in benzene.
  4. DIt is a crystalline solid.

Correct answer

C. It has high solubility in benzene.

Step-by-step solution

In aqueous solutions carboxyl group can lose protons and the amino group can accept a proton thus giving rise to a dipolar known as zwitter ion. Due to this dipolar behaviour they have strong electrostatic interactions within them. For this reason melting point of amino acids is high. It has more than one basic groups amine and guanidine, hence it has two pKa values. It is crystaline solid Since arginine is polar, it is not soluble in benzene.

Practice Biomolecules on Quantrex Academy →

More from Biomolecules

A known artificial sweetener X is composed of 4-chloro-4-deoxy- -D-galactose and 1,6-dichloro-1,6-dideoxy- -D-fructose joined by a glycosidic linkage. Structure of D-galactose is g 2026The correct statement(s) regarding sugars is(are) Given: Specific rotations of L-( - )-glucose and L-( + )-fructose are -52.5^ and +92.5^ , respectively. 2026In the following reaction sequence, major products X and Y are acyclic monomers. 500 mol of X completely reacts with 500 mol of Y to give 1 mol of a single biodegradable acyclic co 2026The incorrect statement from the following with respect to carbohydrates is: 2026Which of the following amino acid will give violet coloured complex with neutral ferric chloride solution? 2026Consider the following reactions. Total number of electrons in the bonds and lone pair of electrons in the product (X) is : 2026Match the List-I with List-II List-I Deficiency Disease List-II Vitamin A. Scurvy I. Pyridoxine B. Convulsions II. Vitamin A C. Cheilosis III. Ascorbic Acid D. Xerophthalmia IV. Ri 2026Match the List-I with List-II List-I Amino acid List-II Positive reaction/Test for functional group present in side chain of amino acid A. Glutamine I. Hinsberg's test B. Lysine II 2026 Full Biomolecules list All JEE Main PYQs