Meso compounds are achiral (optically inactive) diastereomers of chiral stereoisomers. Tartaric acid is optically active only...it has 2 chiral carbon ato… It is a conjugate acid of a meso-tartrate(1-). Contents. 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. 12.9k VIEWS. 4.7k VIEWS. It is optically inactive due … 12.9k SHARES. ChEBI. Optically active compounds having no chiral carbon. 3 Chemical and Physical Properties Expand this section. Share Its angle of optical rotation is also 0°. Meso tartaric acid is optically inactive due to the presence of (A) molecular symmetry (B) molecular asymmetry (C) external compensation (D) two asymm 900+ SHARES. Meso-tartaric acid is a 2,3-dihydroxybutanedioic acid that has meso configuration. 2 Names and Identifiers Expand this section. C) External compensation . It is melting point is 140°C. It can not be separated into two forms. It can be separated into two forms. B) Molecular asymmetry . NEET Chemistry Organic Chemistry - Some Basic Principles And Techniques questions & solutions with PDF and difficulty level Meso-tartaric acid is optically inactive due to the presence of [AIIMS 1982; MP PMT 1987] A) Molecular symmetry . It exists ln 3 forms one is meso form which optically inactive due to internal compensation. III is meso-form of tartaric acid. Meso Tartaric Acid: Racemic Mixture: The angle of optical rotation of meso tartaric acid is 0°. It is melting point is 260°. 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. 1 Structures Expand this section. D) Two asymmetric C-atoms . 4.7k SHARES ... Meso-tartaric acid is optically inactive due to the presence of 1:31 1.7k LIKES. 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 … ... A meso compound is optically inactive due to internal compensation. Meso-tartaric acid is optically inactive due to the presence of 000+ LIKES. Correct Answer: A. Racemic tartaric acid is optically inactive due to 1:07 200+ LIKES. 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 900+ VIEWS.