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NCERT Exemplar Solutions Class 9 Science Solutions for Matter in our Surroundings - Exercise in Chapter 1 - Matter in our Surroundings

Question 5 Matter in our Surroundings - Exercise

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?

(a) Water, air, wind

(b) Air, sugar, oil

(c) Oxygen, water, sugar

(d) Salt, juice, air

Answer:

The answer is c) Oxygen, water, sugar

Explanation:

The intermolecular force of attraction is less in gases than liquid and solid. Solids have higher intermolecular attraction compared to liquid. In the answer, oxygen is a gas which has lesser intermolecular attraction than water-a liquid and sugar- a crystalline solid.

Video transcript
"hello everyone welcome to leader learning i am gurpreet your science tutor today's question is a few substances are arranged in the increasing order of force of attraction between their particles which one of the following represents a correct arrangement a water air vein b air sugar and oil c oxygen water sugar d salt juice and air so the four options have been given to you and you have to tell that which option is correctly arranged in the increasing order of the force of attraction so the forces of attraction between the particles of different states of matter like solid liquid gas they are different in solid the force of attraction is more in liquid in comparison to solid it will be lesser and in gas it will be more or less so the correct option will be here oxygen is a gas then water liquid and sugar is solid so the correct option for this question is option c oxygen water and sugar these are the substances which are arranged in the increasing order of forces of attraction between their particles for more such videos please subscribe leader learning and for any doubts drop a comment thank you"
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