2

Set 4: Words in Context (Advanced)

Explanation

Answer: A

PASSAGE

The molecule _____ electrons more readily under acidic conditions.

Which choice completes the text with the most logical and precise word or phrase?

A. releases✓ Correct
B. repels
C. absorbs
D. attracts

Detailed Answer Explanation

Choice A is the best answer. "Releases" is correct because it means "allows to move freely." The context clues in the passage indicate that this meaning best completes the sentence logically.

Why others are wrong: B ("Repels" means "pushes away," which doesn't fit the context.), C ("Absorbs" means "takes in," which doesn't fit the context.), D ("Attracts" means "draws toward itself," which doesn't fit the context.).