What is called laughing gas...? Mcqs

PPSC Past Papers

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What is called laughing gas...?

(A) Nitrous Oxide
(B) Nitric Oxide

(C) Nitrogen Oxide
(D) Nitrogen Peroxide

Comments

Source: This question is taken from the Manager Auqaf BS 16 PPSC past papers solved

Latest MCQs

Which gas is known as laughing gas...?

(A) Nitrous oxide N2O
(B) Nitrogen

(C) Methane
(D) None of these

Comments

Source: This question is taken from the Assistant (BS-16) Provincial Disaster Management PPSC Past

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