NEET levelSingle correct optionDifficulty 1 of 3st009
How many stereocentres (sp3 carbons bearing four different groups) are present in CHX3−CHBr−CHCl−CHX3?
A2
B1
C4
D3
Answer: A
C1 and C4 are CHX3 groups. C2 has H, Br, CHX3 and CHCl−CHX3, all different; C3 has H, Cl, CHX3 and CHBr−CHX3, all different. So there are 2 stereocentres.