What is the molecular formula for glucose?

The molecular formula for glucose is correctly identified as C₆H₁₂O₆. This formula indicates that one molecule of glucose contains six carbon atoms, twelve hydrogen atoms, and six oxygen atoms.

Glucose is a simple sugar and serves as an essential energy source in living organisms. The structure of glucose contributes to its functionalities in biological processes like cellular respiration and energy storage, particularly as it can be easily metabolized by cells.

The other options, while close, do not accurately represent the composition of glucose. For example, C₆H₁₂O₅ suggests one less oxygen atom, which corresponds to a different structure. Similarly, C₆H₁₀O₆ also indicates a lesser amount of oxygen than found in glucose. Lastly, C₁₂H₂₂O₁₁ represents a disaccharide or other compound that is larger than glucose itself, demonstrating that the correct molecular formula, C₆H₁₂O₆, is crucial for identifying glucose specifically.