Q.

A few substances are arranged in the increasing order of ‘forces of attraction between their particles'. Which one of the following represents a correct arrangement?
(i) Water, air, wind
(ii) Air, sugar, oil
(iii) Oxygen, water, sugar
(iv) Salt, juice, air

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a

i

b

ii

c

iii

d

iv

answer is C.

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Detailed Solution

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In matter, particles are held together by intermolecular forces of attraction that keep the particles together and knitting.

In general, the increasing order of strength of intermolecular forces is-

Gases < Liquids <Solids

Oxygen is a gas, water is liquid and sugar is solid. So this arrangement is correct. 

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