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Endothermic and Exothermic Reaction

One of the fo...

Question

One of the following is an exothermic reaction. This is :

(a) electrolysis of water

(b) conversion of limestone into quicklime

(c) process of respiration

(d) process of photosynthesis

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Solution

(c)

Respiration is an exothermic process because it forms the highly stable C=O bonds of $C O_{2}$ .

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Q. One of the following is an exothermic reaction. This is:
(a) electrolysis of water
(b) conversion of limestone into quicklime
(c) process of respiration
(d) process of photosynthesis

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

(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 exothemic reactions ?

(i) Buring of natural gas (ii) Photosynthesis

(iii) Electrolysis of water (iv) Respitation

(v) Decomposition of calcium carbonate

Q. The conversion of limestone to quicklime in presence of heat is a _______ reaction.

Q. Which of the following are exothermic processes?
(i) Reaction of water with quicklime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)

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