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Physical and Chemical Changes

Which of the ...

Question

Which of the following is an example of exothermic reaction?

A

Combustion

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B

Melting

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C

Evaporation

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D

Sublimation

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Solution

The correct option is A Combustion

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Similar questions

Q. Which of the following is/are example(s) of an exothermic reaction?

Q. The difference between an exothermic chemical reaction and an endothermic one is that one releases energy while the other uses energy. Which of the following is not an example of an exothermic reaction?

Q. The following reaction is an example of a

2 P b (N O_{3})_{2} (s) H e a t - -- \to 2 P b O (s) + 4 N O_{2} (g) + O_{2} (g)

I. Combination reaction
II. Decomposition reaction
III. Endothermic reaction
IV. Exothermic reaction

Q. (a) What do you understand by exothermic and endothermic reactions?
(b) Give one example of an exothermic reaction and one of an endothermic reaction.
(c) Which of the following are endothermic reactions and which are exothermic reactions?
(i) Burning of natural gas
(ii) Photosynthesis
(iii) Electrolysis of water
(iv) Respiration
(v) Decomposition of calcium carbonate

Q. Define an exothermic reaction. Give an example of one such reaction.

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