See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

COOH COOH has 3 planes of symmetry, i.e. x = 3 (Terephthalic acid) It has one plane of symmetry and one centre of symmetry. So, y = 2. (Meso-2,3-dichlorobutane) CH3 CH3 H Cl H Cl (Pent-3-en-2-ol) C H3 C C C H H OH H CH3 Stereocentres Stereocentres So, z = 3.