Which Statement Is Not True

question 22

Multiple Choice

Which statement is not true?

• A)A molecule that is not superimposable on its mirror image is a chiral molecule.
• B)Enantiomers are mirror images that are not superimposable.
• C)A carbon atom surrounded by four different groups is a chirality center.
• D)A racemic mixture contains an equal mixture of two diastereomers.

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Definitions:

Porosity

The measure of void spaces in a material, indicating the capacity to hold fluids.

Groundwater

Water that is found underground in the cracks and spaces in soil, sand, and rocks, forming aquifers.

Cement

A powdery substance made by calcining lime and clay, mixed with water to form mortar or mixed with sand, gravel, and water to make concrete.

Permeability

The ability of a material, especially soil or rock, to allow fluids to pass through it via an interconnected network of pores.