Which of the given molecules is/are meso compound/s?

How many possible stereoisomers can the following compound have?

What is the total number of stereoisomers possible for the given molecule?

Identify whether a meso compound is a possible stereoisomer of the following compounds.

a. 1,2-dibromocyclopentane

b. 1,4-dimethylcyclohexane

True or False: The following molecule is a meso compound.

Do the molecules (i) 1,2-diisopropylcyclopentane and (ii) cyclobutane-1,2-diol have any achiral stereoisomers?

Consider the following molecules:

a. Ethane
b. cis-1,3-dimethylcyclopentane
c. trans-1,3-dichlorocyclohexane

For each compound, determine whether the molecule has an internal plane of symmetry. If it does, draw the plane of symmetry. Also, determine if each molecule is chiral or achiral.