In Detecting analogies questions, the candidate is required to trace out hidden analogy or common characteristic among given words or to choose word which possesses the same characteristic as the given word.

Detect analogy

Chlorine : Fluorine : Iodine

A. These are names of inert gases.
B. These are gases at room temperature.
C. These are transition elements.
D. These are halogens.
Answer: D . These are halogens.

Justification: Justification is not available.