Question

__________ being a suspension, must be shaken well before use.

• A. Cough syrup
• B. Saline water
• C. Sugar syrup
• D. Lemonade

Answer 1

The correct option is A Cough syrup

A suspension is a heterogeneous mixture in which the solids particles do not dissolve in the liquid and rather remain suspended. The undissolved suspended particles can be observed by naked eyes.
Cough syrup is a suspension and the drug particles in them settle down when kept undisturbed. Thus, we shake the syrup before consuming it so that the active ingredients (drug particles) get evenly distributed throughout it.