Question

During photosynthesis plants give out .

• A. oxygen
• B. nitrogen
• C. carbon dioxide

Answer 1

The correct option is A oxygen

Photosynthesis is a process by which green plants prepare their own food from carbon dioxide and water in the presence of sunlight and chlorophyll. During this process oxygen is released. The reaction involved is as follows:
$6{\text{CO}}_2\text{(g)}+6{\text{H}}_2\text{O}\text{(l)}\to {\text{C}}_6{\text{H}}_{12}{\text{O}}_6\text{(s)}+6{\text{O}}_2\text{(g)}$