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Class 9 Chemistry MCQs - Chapter 5

Physical States of Matter MCQ with Answers PDF Download - 4

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Class 9 Chemistry: Physical States of Matter MCQ Questions PDF Download

MCQ: Solids whose atoms arrange themselves in different forms are

A) isotopes
B) crystals
C) allotropes
D) amorphous

MCQ: The process in which the vapor molecules are recaptured by the molecules at the liquid surface is called

A) evaporation
B) sublimation
C) condensation
D) boiling

MCQ: 1 atmospheric pressure is equal to

A) 100.345 Pa
B) 760 kPa
C) 101.325 kPa
D) 1.01325 mmHg

MCQ: A gas that shields living things on the surface of the earth from harmful UV radiation is

A) N2
B) SO2
C) O2
D) O3

MCQ: In graphite, the carbon atoms are arranged in layers of

A) pentagonal arrays
B) heptagonal arrays
C) octagonal arrays
D) hexagonal arrays

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