CBSE 2025 · Region 6 · Set 3 · Q27 · 3 marks
Explain why respiration is considered as an exothermic reaction. Give the chemical equation for this reaction.
Marking-scheme solution
Because energy is released during the process of respiration.
\(\displaystyle \mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}+6 \mathrm{O}_{2} \longrightarrow 6 \mathrm{CO}_{2}+6 \mathrm{H}_{2} \mathrm{O}+\) Energy
(Balancing of equation)
Life ProcessesRespirationUnderstandshort_answermedium
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CBSE Class 10 Science past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.