3 Chemical and Physical Properties Expand this section. ChEBI. 2 Names and Identifiers Expand this section. III is meso-form of tartaric acid. Investigations of isomeric tartaric acid salts, carried out by Louis Pasteur in the mid 19th century, were instrumental in elucidating some of the subtleties of stereochemistry. Meso tartaric acid is optically inactive due to the presence of (A) molecular symmetry (B) molecular asymmetry (C) external compensation (D) two asymm NEET Chemistry Organic Chemistry - Some Basic Principles And Techniques questions & solutions with PDF and difficulty level Correct Answer: A. It is optically inactive due … B) Molecular asymmetry . It exists ln 3 forms one is meso form which optically inactive due to internal compensation. It can be separated into two forms. It is melting point is 140°C. It can not be separated into two forms. Meso-tartaric acid is a 2,3-dihydroxybutanedioic acid that has meso configuration. Meso-Tartaric acid is optically inactive due to the presence of (a) Molecular symmetry (b) Molecular asymmetry (c) External compensation (d) Two asymmetric carbon atoms. 900+ SHARES. Contents. 4.7k VIEWS. It is a conjugate acid of a meso-tartrate(1-). 900+ VIEWS. 12.9k VIEWS. ... A meso compound is optically inactive due to internal compensation. Racemic tartaric acid is optically inactive due to 1:07 200+ LIKES. Optically active compounds having no chiral carbon. Its angle of optical rotation is also 0°. D) Two asymmetric C-atoms . C) External compensation . Meso compounds are achiral (optically inactive) diastereomers of chiral stereoisomers. It is melting point is 260°. Meso-tartaric acid is optically inactive due to the presence of 000+ LIKES. Tartaric acid is optically active only...it has 2 chiral carbon ato… 12.9k SHARES. Optical inactivity of meso -tartaric acid We usually come across in many standard text books of organic chemistry that meso -tartaric acid is optically inactive simply because it has a plane of symmetry [11-13] (point group Cs) and an imaginary mirror plane is drawn across the molecule in … Share Meso-tartaric acid is optically inactive due to the presence of [AIIMS 1982; MP PMT 1987] A) Molecular symmetry . 1 Structures Expand this section. Question Q50) meso-Tartaric acid is optically inactive due to the presence of .. a) Molecular symmetry b) Molecular asymmetry c) External compensation d) Two asymmetric carbon atoms Meso Tartaric Acid: Racemic Mixture: The angle of optical rotation of meso tartaric acid is 0°. 4.7k SHARES ... Meso-tartaric acid is optically inactive due to the presence of 1:31 1.7k LIKES.