Class 9 Chemistry MCQs – Practice Test 1 (Chapter 5)

Physical States of Matter MCQs with Answers PDF Download – Test 1

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The "Physical States of Matter MCQs" App Download: Conversion of a liquid to a gas at all temperatures is called; MCQ with answers: evaporation, sublimation, condensation, and boiling. Solve Solid State and Properties MCQ Questions, download Google e-Book (Free Chapter) to achieve chemistry learning success.

Physical States of Matter MCQs – Practice Test 1 PDF Download

MCQ 1: The process in which the solid changes directly into vapors without changing in the liquid state is called:

condensation
evaporation
boiling
sublimation

MCQ 2: Conversion of a liquid to a gas at all temperatures is called:

sublimation
evaporation
condensation
boiling

MCQ 3: The temperature at which the solid starts melting is called:

boiling point
freezing point
melting point
sublimating point

MCQ 4: At constant pressure the average kinetic energy of gas molecules increases 2 times if:

temperature is increased by 2 times
temperature is halved
no change in temperature
temperature remains constant

MCQ 5: The average kinetic energy of gas molecules is directly proportional to:

T²
√T
T
2T

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