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

Practice MCQs: Class 9 Chemistry Mock Tests

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