In the experiment to show that CO2 is given out during respiration- the small test tube containing KOH solution is

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In the experi...

Question

In the experiment to show that CO₂ is given outduring respiration, the small test tube containing KOH solution is

dipped in the water in the beaker
hanged outside the beaker containing water
hanged in the conical flask
hanged from delivery tube outside the conical flask.

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Solution

The correct option is C
hanged in the conical flask

The correct option is c.
Explanation of the correct option:
In the experiment that proves that carbon dioxide is released in the respiration, the test tube containing KOH (potassium hydroxide) is hanged in the conical flask as it absorbs the carbon dioxide released, its position in such a way that it creates the vacuum in the flask.
Explanation of the incorrect options:
Option A:
KOH solution tube is not dipped in the water as it will not fulfill its purpose in that position.
Option B:
KOH solution tube is not hanged outside the beaker as it will not be able to absorb its main purpose then, that is the creation of a vacuum by absorbing the carbon dioxide.
Option D:
The KOH solution is not hanged outside the conical flask as there is no purpose there.
Therefore, the small test tube containing KOH solution is hanged in the flask in the experiment.

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(d)

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In the experiment to show that CO2 is given out during respiration, the small test tube containing KOH solution isdipped in the water in the beakerhanged outside the beaker containing water hanged in the conical flaskhanged from delivery tube outside the conical flask.

In the experiment to show that CO₂ is given outduring respiration, the small test tube containing KOH solution is

dipped in the water in the beaker
hanged outside the beaker containing water
hanged in the conical flask
hanged from delivery tube outside the conical flask.