Which of the following is an endothermic process?

Reaction of water with quicklime

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Dilution of an acid

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Neutralisation of an acid using base

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Sublimation of camphor crystals

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Solution

The correct option is D Sublimation of camphor crystals
Reaction of quicklime, dilution of acid or neutralization reaction, are heat evolving reactions. So, they are exothermic in nature. Sublimation of camphor is the transition of a substance directly from solid to the gas phase without passing through the liquid phase. It is an endothermic process.

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Similar questions

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)

Q. Dilution of an acid or a base is an endothermic reaction.

Q. The process of dissolving an acid or a base in water is a highly endothermic reaction.

Question 4

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)

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (iii) and (iv)

Q. Which of the following is(are) an endothermic process(es) ?
(i) Dilution of sulphuric acid
(ii) Sublimation of dry ice
(iii) Condensation of water vapours
(iv) Evaporation of water

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