Which of the following gas, when ignited, burns with a blue flame and is not very soluble in water?
Correct answer: C. N2
- A. O2
- B. CO2
- C. N2
- D. He
Explanation
Firstly we should be clear that each gas has a specific type of flame depending on the nature of combustion and the products formed and so does all these gases which are given in the option. Nitrogen when ignited in the presence of oxygen it forms various oxides of nitrogen like NO, NO2 and burns with a blue flame.
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