How many meso dibromocyclopentanes, C5H8Br2, are there? 1.0 2.1 ...

[piesebel]

How many meso dibromocyclopentane s, C5H8Br2, are there?
  1.0
  2.1
  3.2
  4.3
  5.4

Question 2

How many stereoisomers exist for the molecule shown below?
 
  1.1
  2.2
  3.3
  4.4
  5.8

Question 3

Which of the above molecules are achiral?
  1.A and C
  2.A and E
  3.B and C
  4.B and D
  5.D and E
 

Question 4

Which statement about chirality and optical activity is false?
  1.If a solution shows optical activity, it must have a compound present whose mirror image is not superimposable on the compound itself.
  2.Molecules with plane of symmetry will show no optical activity.
  3.The angle of rotation of plane-polarized light depends on how many chiral molecules does the light interact with while passing through the sample.
  4.Enantiomers will always have opposite signs of optical rotation.
  5.The R enantiomers are dextrorotatory.

[TINA]

Answer to Question 1

3

Answer to Question 2

4

Answer to Question 3

2

Answer to Question 4

5