31.CHiral , has one chiral C and no plane of symmetry
32. chiral
33.chiral
34.achiral , as 2 substituents are same
35.chiral
36.achiral
37.achiral (plane of symmetry)
38. CHiral
39.Achiral
40. AChiral
Here all chiral compounds above have one chiral carbon and no plane of symmetry.
B. Identify each of the following molecule as chiral or achiral. (By circling the chiral ones.)...