Which of the following is not optically active compound?
(a) 1,7- Dicarboxylic spirocycloheptane
(b) 1,3- Diphenyl propadiene
(c) Meso-tartaric acid
(d) Glyceraldehyde
The question was posed to me in my homework.
Origin of the question is Optical Isomerism in section Structure and Stereostructure of Molecules of Engineering Chemistry I