The overall reaction of photosynthesis is
A6 O2 + 6 H2O -> C6H12O6 + 6 CO2 by sunlight
B6 CO2 + 6 H2O -> C6H12O6 + 6 O2
CC6H12O6 + 6 O2 -> 6 CO2 + 6 H2O by respiration
DC6H12O6 -> 6 CO2 + 6 H2 by another reaction
Answer & Solution
Correct answer: B. 6 CO2 + 6 H2O -> C6H12O6 + 6 O2
1. Reactants are CO2 and water, with sunlight as energy.
2. Products are glucose (C6H12O6) and oxygen.
3. Balanced form: 6 CO2 + 6 H2O -> C6H12O6 + 6 O2.
4. So option A is correct.
_Source: Selina Concise Biology Class 10, Ch on Photosynthesis (Mistral OCR'd PDF), section on equation_
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