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Question

Nitrogen ______.
  1. supports combustion
  2. does not support combustion
  3. is non-flammable
  4. is flammable

A
is flammable
B
does not support combustion
C
supports combustion
D
is non-flammable
Solution
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Nitrogen (N2) is a colourless, odourless, and tasteless gas that makes up 78.09% (by volume) of the air we breathe. It is non-flammable and does not support combustion.
Hence, options B and C are correct.

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