Question

In the process of photosynthesis by plants, which of the following is not required?

• A. Water
• B. Carbon dioxide
• C. Sunlight
• D. Alum

Answer 1

The correct option is D Alum

Photosynthesis is the process by which green plants and some other autotrophic organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. In the photosynthesis of plants, alum is not required.

So, the correct answer is option 'D'.