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16 gms of O2 bubble alongwith  colour inert air in a capillary and encased with murcury can give us information about %O2 for small pond or Aquarium.

Question asked by sanket saxena on Jun 22, 2013

16 gms of O2 bubble alongwith  colour inert air in a capillary and encased with murcury can give us information about %O2 for small pond or Aquarium.

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