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NEET levelSingle correct optionDifficulty 1 of 3ig113

In eudiometry, unreacted oxygen in the residual gas is absorbed by

  1. AKOH solution
  2. Balkaline pyrogallol
  3. Cwater
  4. Dconcentrated

Answer: B

Alkaline pyrogallol absorbs oxygen. KOH absorbs , and concentrated absorbs water vapour and ammonia.
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