Multiple choice

Structurally chlorophyll a differs from chlorophyll b in possessing

  1. -CH3 gp at carbon 3

  2. -OH gp at carbon 5

  3. -CHO gp at carbon 3

  4. -CH3 gp at carbon 5
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A Correct answer
Explanation

Chlorophyll a has a methyl (-CH3) group at the third carbon position, whereas chlorophyll b has an aldehyde (-CHO) group at that same position.

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