Science, asked by Anonymous, 6 months ago

show an activity to determine the presence of carbon dioxide in any dish with few steps​

Answers

Answered by Anonymous
2

Answer:

just put calcium carbonate with touch in co2 and check the color

Explanation:

if it turn in milky white then it show the presence of co2

Answered by debroytanusree
1

Answer:

EXPERIMENT TO PROVE THE NECESSITY OF CARBON DIOXIDE IN PHOTOSYNTHESIS - DEFINITION

To prove the necessity of carbon dioxide in photosynthesis following steps need to do

Insert a part of the leaf of a destarched plant into a conical flask containing potassium hydroxide.

Potassium hydroxide solution absorbs the carbon dioxide gas from the air present in the glass bottle.

Leave the plant sunlight.

After few hours, perform a starch test to this and another leaf of the same plant.

Observation-

Leaf exposed to the atmosphere are bluish black.

Leaf exposed to KOH does not change to blue-black colour

Result- Starch is present in the green part of the leaf.

Conclusion- Presence of starch proves that chlorophyll is necessary for photosynthesis as it traps sunlight.

Explanation:

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