Q. a leaf is boiled in methylated spirit using iodine for starch test in order to
options:
a) dissolve starch
b) dissolve chlorophyll
c) soften the leaf
d) make it react with iodine
Answers
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1
Answer:
option B dissolve Chlorophyll
Explanation:
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We boil the leaf in alcohol when we are testing it for starch to remove the green pigment chlorophyll present in it.
For the starch test, we need to observe the colour change from brown to blue when iodine is put on the leaf. Hence, A leaf is boiled in alcohol before using iodine for a starch test to decolourize it.
For the starch test, we need to observe the colour change from brown to blue when iodine is put on the leaf. Hence, A leaf is boiled in alcohol before using iodine for a starch test to decolourize it.
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