Question

Which of the following pair is used in the reaction of photosynthesis?

• A. Carbon dioxide and Oxygen
• B. Water and Oxygen
• C. Water and Carbon dioxide
• D. Carbon dioxide and Nitrogen

Hint:

In photosynthesis, green plants use light, water, and carbon dioxide to produce glucose and release oxygen as a byproduct.

Answer 1

The Correct Option is C

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy stored in glucose. The two main reactants used in photosynthesis are water (\( \text{H}_2\text{O} \)) and carbon dioxide (\( \text{CO}_2 \)).
The general equation for photosynthesis is: \[ 6\text{CO}_2 + 6\text{H}_2\text{O} \xrightarrow{\text{light}} \text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2 \]
In this reaction:
- Water (\( \text{H}_2\text{O} \)) and carbon dioxide (\( \text{CO}_2 \)) are the key reactants.
- Oxygen (\( \text{O}_2 \)) is a byproduct of the reaction.
Thus, the correct answer is (C) Water and Carbon dioxide.