Which of the Following is Not an Endothermic Reaction? (A) Caco3 → Cao + Co2 (B) 2h2o →2h2 + O2 (C) 6co2 + 6h2o → C6h12o6 + 6o2 (D) C6h12o6 + 6o2 → 6co2 + 6h2o - Science

Which of the following is not an endothermic reaction?

(a) CaCO₃ → CaO + CO₂

(b) 2H₂O →2H₂ + O₂

(d) C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

Solution

(d) C₆H₁₂O₆ + 6O_{2 →} 6CO₂ + 6H₂O
This is the reaction of respiration process in which glucose burns in oxygen to produce heat energy needed by our body. So, this reaction is an exothermic reaction.

Concept: Chemical Equation

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Chapter 1: Chemical Reactions and Equations [Page 21]

Q 43 Q 42 Q 44

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Chapter 1 Chemical Reactions and Equations
Q 43 | Page 21

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Which of the Following is Not an Endothermic Reaction? (A) Caco3 → Cao + Co2 (B) 2h2o →2h2 + O2 (C) 6co2 + 6h2o → C6h12o6 + 6o2 (D) C6h12o6 + 6o2 → 6co2 + 6h2o - Science

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Which of the Following is Not an Endothermic Reaction? (A) Caco3 → Cao + Co2 (B) 2h2o →2h2 + O2 (C) 6co2 + 6h2o → C6h12o6 + 6o2 (D) C6h12o6 + 6o2 → 6co2 + 6h2o - Science

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