Four different words are given, out of w

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Target Exam

CUET

Subject

General Test

Chapter

General Ability

Topic

Odd One Out/Classification

Question:

Four different words are given, out of which three are same in a certain way. Find the odd word that does not belong to the others?

Options:

Xenon

Argon

Oxygen

Radon

Correct Answer:

Oxygen

Explanation:

Except option (3), all other are inert gases.