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Multiple Choice Questions : Oxygen GK

Are you looking for GK on Oxygen? If Yes then you are at right place. Here you will find detailed General Knowledge on Oxygen - GK Questions and Answers, Trivia, Quiz, Interview MCQ & Oxygen Current Affairs for Government & Competitive Exams like SSC and UPSC, RRB, NDA, CDS exams, around 10% to 20% of GK questions are asked from the Current GK. as you know Oxygen GK MCQS is very important for Competitive Exams. In this GK MCQ section we are covering MCQS on Oxygen

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Question : Which of these is not essential for photosynthesis?

A. Sunlight

B. Oxygen

C. Water

D. Carbon dioxide

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Question Listed : Plant, Tree, Oxygen,

Question : The gases used in different types of welding would include

A. oxygen and acetylene

B. oxygen, acetylene and argon

C. oxygen, hydrogen, acetylene and nitrogen

D. oxygen and hydrogen

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Question Listed : Oxygen, Acetylene, Elements, Metals,

Question : For respiration in deep sea, divers use mixture of

A. Oxygen and nitrogen

B. Oxygen and carbon dioxide

C. Oxygen and hydrogen

D. Oxygen and helium

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Question Listed : Gas, Helium, Oxygen,

Question : The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is

A. nitrogen

B. oxygen

C. hydrogen

D. carbon

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Question Listed : Oxygen, Chemistry,

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