What is called laughing gas...? Mcqs

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Latest MCQs

What is called laughing gas...?

(A) Nitrous Oxide

(B) Nitric Oxide

(C) Nitrogen Oxide

(D) Nitrogen Peroxide

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Latest MCQs

Which gas is known as laughing gas...?

(A) Nitrous oxide N2O

(B) Nitrogen

(C) Methane

(D) None of these

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