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