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The process of respiration is:...

The process of respiration is:

A

an oxidation reaction which is endothermic

B

a reduction reaction which is exothermic

C

a combination reaction which is endothermic

D

an oxidation reaction which is exothermic.

Text Solution

Verified by Experts

The correct Answer is:
D
The food that we eat is broken down into simpler substances like glucose on digestion. The air we breathe in during respiration oxidises glucose into `CO_2` and water with release of heat that provides us with the required energy. As energy is released, the reaction is exothermic.
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MTG IIT JEE FOUNDATION-CHEMICAL REACTIONS AND EQUATIONS-EXERCISE (Multiple Choice Questions )
  1. Which of the following is a decomposition reaction ?

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  2. Which of the statement about the following reactions is correct ? Z...

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  3. In the decomposition of lead (II) nitrate to give lead (II) oxide,nitr...

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  4. Which of the following is not an example of single displacement reacti...

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  5. The reaction in which to compounds exchange their ions to form two com...

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  6. Antioxidants are

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  7. Aluminium is more reactive than iron. But aluminium is less easily cor...

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  8. The example for exothermic reaction is

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  9. What does the symbol (aq) represent in a chemical equation?

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  10. In the reaction betwee.n lead sulphide and hydrogen peroxide which sub...

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  11. Which of the following reactions is involved in black and white photog...

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  12. Which of the following is not a combination reaction?

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  13. Which of the following is not a double displacement reaction?

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  14. The addition of oxygen to a substance is called

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  15. Identify the following type of reaction. 2KCIO3underset("catalyst")o...

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  16. Which of the following pairs will give displacement reactions?

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  17. Which of the following is a chemical change?

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  18. When copper sulphate solution reacts with iron metal, copper metal is ...

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  19. Which information is not conveyed by a balanced chemical equation?

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  20. The process of respiration is:

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