A) \[C{{O}_{2}}\]
B) \[{{H}_{2}}O\]
C) chlorophyll
D) phosphoglyceric acid
Correct Answer: B
Solution :
Oxygen which is liberated during photosynthesis comes from \[{{H}_{2}}O.\text{ }C{{O}_{2}}\]is educed to form carbohydrate during photosynthesis. Chlorophyll is 'Mg' containing green pigment which helps in photosynthesis. Phosphoglyceric acid is the first stable product of photosynthesis in \[{{C}_{3}}\]plants. \[\text{4}{{\text{H}}_{\text{2}}}\text{O}\text{4}{{\text{H}}^{\text{+}}}\text{+4O}{{\text{H}}^{\text{-}}}\] \[\text{4O}{{\text{H}}^{-}}\text{2}{{\text{H}}_{2}}{{O}^{\text{+}}}{{\text{O}}^{2}}\uparrow +\,\text{4}{{\text{e}}^{\text{-}}}\]
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