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Matter · ICSE STD 8 (ICSE - English Medium). 8 questions.

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8 questions · timed · auto-graded

Question 11 Mark
Intermolecular force of attraction is maximum in $.........$ less in liquids and the least in gases.
Answer
Intermolecular force of attraction is maximum in solids less in liquids and the least in gases.Intermolecular force of attraction is maximum in solids less in liquids and the least in gases.
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Question 21 Mark
Intermolecular space is maximum in $.........$ less in liquids and the least in solids.
Answer
Intermolecular space is maximum in gases less in liquids and the least in solids.
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Question 31 Mark
Molecules of a substance are always in a state of $.........$ and so they possess Kinetic energy.
Answer
Molecules of a substance are always in a state of motion and so they possess kinetic energy.
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Question 41 Mark
The smallest unit of matter that exists freely in nature is called $.........$ 
Answer
The smallest unit of matter that exists freely in nature is called molecule.
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Question 51 Mark
The temperature at which a solid convert into a liquid is called its $.........$ .
Answer
The temperature at which a solid convert into a liquid is called its melting point.
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Question 61 Mark
$.........$ is a process that involves direct conversion of a solid into its vapour on heating.
Answer
Sublimation is a process that involves direct conversion of a solid into its vapour on heating.
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fill in the blanks. - PHYSICS STD 8 Questions - Vidyadip