Question

You saw three cylinders containing each - O, SO2 and CO2 gas. Which of the following do you need
to identify oxygen cylinder?
(A) Lime water
(B) Lighter or match stick
(C) Either A or B​

Answer 1

Answer:

B) lighter

Explanation:

the rate of burning will increase in presence of higher concentration of oxygen

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Answer 2

Answer:

(B)Lighter or match stick