Class 7 Science MCQs - Chapter 17
Physical and Chemical Changes Multiple Choice Questions (MCQs) PDF Download - 33
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The Physical and chemical changes Multiple Choice Questions (MCQs) with Answers PDF (physical and chemical changes MCQs PDF e-Book) download Ch. 17-33 to study Grade 7 Science Course. Learn Physical and Chemical Changes Quiz Questions and Answers to study online homeschool courses. The Physical and Chemical Changes MCQs App Download: Free learning app for polythene, solids liquids and gases, reversible reaction, physical changes, chemical changes test prep for online school and college.
The Multiple Choice Question (MCQ): As compared to low density polythene, the high density polythene can withstand; "Physical and Chemical Changes" App Download (Free) with answers: Low pressures; High temperatures; High pressures; Low temperatures; to study online homeschool courses. Solve Polythene MCQ Questions, download Google eBook (Free Sample) for online school courses.
Physical and Chemical Changes MCQs with Answers PDF Download: Quiz 33
As compared to low density polythene, the high density polythene can withstand
- high temperatures
- low pressures
- high pressures
- low temperatures
The particles of gases are
- packed tightly
- packed closely
- small as compared to that of solids and liquids
- far apart
The color of 'nitrogen' gas is
- brown
- red
- green
- purple
After sometime the particles of solids start to move far apart, when
- kinetic energy is greater than thermal energy
- kinetic energy is greater than force of attraction
- potential energy is greater than kinetic energy
- potential energy is greater than thermal energy
Chemical changes are also known as
- physical reactions
- chemical reactions
- biological reactions
- prominent reactions
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