Question

This gas is required for the process of photosynthesis.

• A. Nitrogen
• B. Hydrogen
• C. Carbon dioxide
• D. None of these

Answer 1

The correct option is C

Carbon dioxide

The explanation for the incorrect option- (C) Carbon dioxide

Photosynthesis- The process by which plants use carbon dioxide and water in presence of sunlight to form sugar(carbohydrate) and oxygen.

$\mathrm{Carbon}\mathrm{dioxide}\left(\mathrm{g}\right)+\mathrm{Water}\left(\mathrm{l}\right)\stackrel{\mathrm{sunlight}}{\to }\mathrm{Glucose}\left(\mathrm{s}\right)+\mathrm{Oxygen}\left(\mathrm{g}\right)$

The explanation for the incorrect options-

(A) Nitrogen - It does not take part in the process of photosynthesis.

(B) Hydrogen - It does not take part in the process of photosynthesis.

Hence, option (C) is correct. Carbon dioxide gas is required for the process of photosynthesis.