state gov UPSSSC Forest Guard Mock Test 2023 General Science Biology Botany

Which of the following chemical reactions occurs during photosynthesis?

1
Sucrose reacts with oxygen in presence of sunlight and chlorophyll to form and carbon dioxide.
2
Carbon dioxide reacts with water in presence of sunlight and chlorophyll to form sucrose. 
3
Glucose reacts with oxygen in presence of sunlight and chlorophyll to form water and carbon dioxide. 
4
Carbon dioxide reacts with water in presence of sunlight and chlorophyll to form glucose. 
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