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CBSE Class 10 Science 2015 Term I Set 2
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Question : 32
Total: 36
In an experiment to show that 'sunlight is necessary for photosynthesis', the leaf is boiled in alcohol for few minutes using a water bath. It is essential because :
Alcohol is highly volatile.
Steam from the water bath heats the leaf rapidly.
Steam from the water dissolves the chlorophyll.
Alcohol is flammable.
Solution:
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