Question

chirality
chiral (pronounced kie - rahi) objects cannot be perfectly superimposed on their mirror images. this descriptive term is used in organic and nonorganic chemistry, biology, and physics. however, each of us experience chirality on a daily basis, and a quick, facile experiment can help to delineate this concept. if you attempt to superimpose your left hand on top of your right, you will find that the two hands do not line up geometrically. therefore, your hands are chiral objects. many biologically active molecules, including amino acids and sugars, are chiral.
the word \facile\ in this passage most nearly means
a. unsafe.
b. expensive.
c. humorous.
d. easy.

Explanation:

To determine the meaning of "facile", we analyze the context. The passage says a "quick, facile experiment" helps explain chirality. The example of superimposing hands is a simple task. "Unsafe" (A) doesn't fit as the experiment is described positively. "Expensive" (B) is irrelevant. "Humorous" (C) doesn't relate to the experiment's nature. "Easy" (D) matches the idea of a quick and simple experiment, as the hand - superimposing example is easy to do.

Answer:

D. easy