Question

What are examples of diastereomers?

Answer 1

Diastereomers are (a pair) geometric isomers that are NOT mirror images.

Explanation:

And thus probably the best example of diastereoisomerism is provided by `"2-butylene"`. Are the cis and trans isomers diastereomers by the definition?

Tartaric acid provides another example of diastereoisomerism.