Of the Following Which Is NOT a Pure Substance

question 53

Multiple Choice

Of the following which is NOT a pure substance

• A) gold
• B) sugar
• C) water
• D) air
• E) methane

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Definitions:

Polarimetry Tube

A laboratory device used to measure the rotation of polarized light as it passes through optically active substances.

Specific Rotation

A physical property of chiral compounds, describing the direction and magnitude of rotation of plane-polarized light by a substance.

Glucose

A simple sugar and important energy source in living organisms, classified as a monosaccharide and playing a crucial role in carbohydrate metabolism.

Enantiomers

Mirror-image forms of a molecule that cannot be superimposed on each other, often having different properties in a chiral environment.