Question

c) Why are we not heating the tube containing alcohol with the leaf in it directly over the fire?​

Answer 1

Answer:

This is because alcohol is extremely inflammable (meaning it will catch fire easily), and directly heating it will cause the alcohol to burn, which in turn will burn the leaf. So ya bad idea.

Hope you understand :D

Answer 2

Answer:

to remove chlorophyll from a leaf,we can dip leaf in alcohol and then in water. This would separate chlorophyll from leaf. Just like alcohol,leaf is highly inflamable. Thus,we cannot directly heat leaf and alcohol.