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Question

Which of the following gas, when ignited, burns with a blue flame and is not very soluble in water?
  1. O2
  2. CO2
  3. N2
  4. He

A
N2
B
O2
C
CO2
D
He
Solution
Verified by Toppr

Nitrogen when ignited in presence of oxygen it forms various oxides of nitrogen like NO, NO2 and burns with a blue flame.
Hence, option C is correct.

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