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Science · 2025 · 3 marks
CBSE 2025 · Region 6 · Set 3 · Q27
Explain why respiration is considered as an exothermic reaction. Give the chemical equation for this reaction.
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)
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CBSE Class 10 Science past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.