Which gas does not form the part of atmosphere ?
1). Nitrogen
2). Helium
3). Chlorine
4). None of the above
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1. Dry powder fire extinguishers contain
3. The tip of the matchstick contains
5. Humburger effect is otherwise known as
7. Muscles get tired when there is shortfall of ___________.
8. The cathode of a lead storage battery is made up of
9. Question 2.2:Give an example of solid solution in which the solute is a gas.