a student conducted an experiment to show co2 is released during respiration. list any two precautions that the student must take for obtaining correct observation
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Explanation:
A student conducted an experiment to show CO₂ is released during respiration.
For obtaining correct observations, following precautions should be kept in mind:
1. Always use freshly prepared KOH solution and as KOH is corrosive so handle it carefully.
2. The experiment set up must be air-tight.
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Explanation:
Following are the precaution student take in the experiment:-
A) The apparatus should be airtight especially conical flask.
B) Freshly prepared KOH should be used.
C) Put the shorter end of glass in a way it avoids touching the seeds.
December 27, 2019
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