C₆H₁₂O₆(aq) + 6O₂(g) → 6CO₂(g) + 6H₂O(l). The above reaction is an example of

Question

C₆H₁₂O₆(aq) + 6O₂(g) → 6CO₂(g) + 6H₂O(l).
The above reaction is an example of

Accepted Answer

## Model Answer **(C) Exothermic Reaction** The given reaction is respiration, where glucose burns in oxygen releasing energy (heat). Reactions that release heat along with products are called exothermic reactions. *Source: Chapter 1, What you have learnt; Chapter 1, Exercise Q.10* --- ## Explanation - The key clue is that glucose reacts with oxygen to produce CO₂ and H₂O — this is cellular respiration, which **releases energy**, making it exothermic. - Examiners expect you to recall that **exothermic = heat released**; endothermic = heat absorbed. - It is **not** displacement (no element replacing another) or neutralisation (no acid-base), so eliminate those quickly. - NCERT Exercise Q.10 directly asks why respiration is exothermic — link that knowledge here.

Science — CBSE Class 10 board question