Optical Isomers – Part 1

Question 1

what are optical isomers ?

Answer 1

Steroisomers that are non-superimposable mirror images of each other

Question 2

In which compounds do optical isomers occur ?

Answer 2

in Chiral compounds

Question 3

in what 2 groups can molecules be divided in ?

Answer 3

Achiral or Chiral

Question 4

what are achiral objects ?

Answer 4

Any object that can be super-imposed on its mirror image is said to be achiral

Question 5

what is a chiral object ?

Answer 5

An object that cannot be super-imposed on its mirror image

Question 6

what can raise chirality in molecules ?

Answer 6

A carbon atom with 4 different groups attached which is always marked with “ * “ and called stereogenic carbon atom

Question 6

what can raise chirality in molecules ?

Answer 6

A carbon atom with 4 different groups attached which is always marked with “ * “ and called *stereogenic carbon atom *

Question 7

How do you distinguish chiral molecules ?

Answer 7

• look for the presence of a plane of symmetry.

Question 8

What is a plane symmetry ?

Answer 8

One that cuts through a molecule in such a way that one half of the molecule is the mirror half of the other half

Question 8

What is a plane symmetry ?

Answer 8

One that cuts through a molecule in such a way that one half of the molecule is the mirror half of the other half

Question 9

What is the meaning of (R) in R and S configuration ?

Answer 9

clockwise

Question 10

What is the meaining of (S) in R and S configuration ?

Answer 10

counterclockwise