CTET SEPT16 PAPER2 Q82

82A teacher of Class VII demonstrates the following activity in the class
"A leaf is put in a test tube and spirit is poured over it. Then the test tube is put in a beaker half-filled with water and heated till the leaf is discoloured. The leaf is then taken out and a few drops of iodine are put on it. The leaf turns blue-black in colour." After this activity, the teacher gives some questions for the assessment of various indicators of learning.
Which of the following would assess 'analysis'?

Option : D
Explanation : It is important to remove chlorophyll because it is a green pigment and so marks the colour change of the Iodine test for starch.

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