In which of the following entropy decreases ?

Crystallization of sucrose from solution

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Rusting of iron

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Melting of ice

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Vaporization of camphor

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Solution

The correct option is A
Crystallization of sucrose from solution

Because randomness is decreases.

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Similar questions

Q. Group the following into physical change and chemical change.

Dissolving salt in

H_{2} O,

burning of a fuel, rusting or iron, melting of ice cube.

Question 4

(c) Classify the following processes into physical or chemical changes.
baking of bread, switching of an electric bulb, curdling of milk, dissolving sodium chloride in water, photosynthesis, rusting of iron, evaporation of water, formation of dew, sublimation of camphor, burning of charcoal or LPG, clotting of blood, crystallization of sugar, ripening of fruit, cooking of vegetables, melting of wax.

State the type of changes taking place in the following examples.

(i) Combustion of wood

(ii) Melting of ice.

(iii) Cooking of food.

(iv) Rusting of iron.

(v) Ripening of fruits.

(vi) Tearing of papers

In which of the following process entropy increases?

a) Rusting of iron

b) Vapourisation of Camphor

c) Crystallisation of sugar from syrup

d) Atomisation of dihydrogen