Class 7 Science MCQs - Chapter 17

Physical and Chemical Changes Quiz Questions & Answers PDF Download - 15

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The Quiz: The shape of solid is; "Physical and Chemical Changes" App (iOS, Android) with answers: Definite; Changeable; Irregular; Regular; to learn online classes courses. Study Solids Liquids and Gases MCQ Questions, download Amazon eBook (Free Sample) for online school classes.

Physical and Chemical Changes Exam Questions and Answers PDF Download: Test 15

MCQ 71:

The shape of solid is

changeable
definite
irregular
regular

MCQ 72:

The reaction in which heat is taken while taking place, is known as

exothermic reaction
endothermic reaction
reversible reaction
substitutive reaction

MCQ 73:

Large and long molecules made by the linkage of small molecules are known as

polyesters
polymers
polypeptides
polysomerism

MCQ 74:

John Hyatt's invention was about

cellulose in wood
soil particles under plant roots
plant stem
barks of wood

MCQ 75:

Polyvinyl chloride is a

metal
plastic
metalloid
gas

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