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Matter CHEMISTRY - Matter

ICSE - STD 8 - CHEMISTRY (ICSE - English Medium). 38 questions in this chapter.

Question types

Matter question types

38 questions across 5 question groups — pick any mix to generate a CHEMISTRY paper with step-by-step answer keys.

38
Questions
5
Question groups
5
Question types
Sample Questions

Matter questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 11[3 Mark Question Answer]3 Marks
What is inter$-$conversion of matter. Give the meaning of the terms involved in inter$-$conversion of matter $–$
$(a)$ Melting
$(b)$ Vaporisation
$(c)$ Liquefaction or condensation
$(d)$ Solidification or freezing
$(e)$ Sublimation.
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Q 13[3 Mark Question Answer]3 Marks
State in which of the following examples Le. a piece of wood, water, a light gas is the $–$
$(a)$ Inter$-$particle space maximum
$(b)$ Inter$-$particle attraction maximum
$(c)$ Energy possessed by particles of matter, very large.
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Q 14[3 Mark Question Answer]3 Marks
State the main postulates of the kinetic theory with special reference to $–$
$(a)$ Inter$-$particle space
$(b)$ Inter$-$particle attraction
$(c)$ Energy possessed by particles of matter.
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Q 17[5 Mark Question Answer]4 Marks
With reference to inter-conversion of matter $–$ on the basis of kinetic theory $–$ explain in brief the conversion of:
$(a)$ A solid into a liquid
$(b)$ A liquid into vapour $[$or gas$]$
$(c)$ Vapour [or gas] into a liquid
$(d)$ A liquid into a solid
With special reference to inter$-$particle space $\&$ interparticle attraction at the different stages of conversion.
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Q 19[5 Mark Question Answer]4 Marks
State which of the three states of matter Le. solids, liquids or gases $–$ have
$(a)$ No definite volume
$(b)$ A definite shape
$(c)$ High density
$(d)$ No free surfaces
$(e)$ Particles $–$ which diffuse very easily.
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