Find the odd one out: Oxygen, Nitrogen, Hydrogen, Carbon dioxide MCQ with Answer and Explanation

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Find the odd one out: Oxygen, Nitrogen, Hydrogen, Carbon dioxide

A. Oxygen

B. Nitrogen

C. Hydrogen

D. Carbon dioxide

Answer: Option D

Solution (By JKSSB Mock Tests)

Oxygen, Nitrogen and Hydrogen are elements; Carbon dioxide is a compound.

This question belongs to: Reasoning Classification (Odd One Out)

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Practice More Classification (Odd One Out) Questions

Question #1

Find the odd one out: And, But, Or, Because

A. Or

B. And

C. Because

D. But

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Correct Answer: Option C

Explanation:
And, But and Or are coordinating conjunctions; Because is a subordinating conjunction.

This question belongs to: Reasoning Classification (Odd One Out)

Question #2

Find the odd one out: G, K, O, T

A. O

B. K

C. G

D. T

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Correct Answer: Option D

Explanation:
G=7, K=11 and O=15 follow a gap of 4; T=20 breaks the arithmetic sequence.

This question belongs to: Reasoning Classification (Odd One Out)

Question #3

Find the odd one out: Punjab, Haryana, Goa, Srinagar

A. Punjab

B. Haryana

C. Goa

D. Srinagar

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Correct Answer: Option D

Explanation:
Punjab, Haryana and Goa are Indian states; Srinagar is a city.

This question belongs to: Reasoning Classification (Odd One Out)

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