Question

220
Observe the experiment and answer
the following
N
questions:
boiling
water
-
Et
Alchor
Leaf
Lear Banfared in
teafbeld in watax. attest tutte
Step 2
Step 1
Steb
black-blue
We are
->
10
unden
WON
water
Gheat water
to make alchol
boilo
Step4
Lealmashed
Drop of solution
indtape
stebs
added
Step 6
HEwhat does Nabab experiment provide ​

Answer 1

Answer:

fractional distillation

Answer 2

Answer:

Explanation:

The leaf is kept in boiling alcohol solution (in water bath) during the experiment because hot alcohol solution helps to decolourize the leaf so that the blue colour of iodine becomes visible. If guard cells lose water, they become flaccid and their walls come back to the original position causing closing of stomata.

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