Class 7 Science MCQs - Chapter 17
Physical and Chemical Changes Multiple Choice Questions (MCQ) PDF Download - 14
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The Physical and chemical changes Multiple Choice Questions (MCQ Quiz) with Answers PDF (Physical and Chemical Changes MCQ PDF e-Book) download Ch. 17-14 to learn Grade 7 Science Course. Study Solids Liquids and Gases Multiple Choice Questions and Answers (MCQs) PDF, Physical and Chemical Changes Quiz Questions and Answers to study distance learning courses. The Physical and Chemical Changes MCQ App Download: Free educational app for solids liquids and gases, iron and sulphur, polyvinyl chloride, making ammonia test prep for online degrees.
The MCQ: When solids are heated, they; "Physical and Chemical Changes" App (Android & iOS) with answers: Expand more than gases but less than liquids; Expand more than liquids; Expand more than liquids but less than gases; Expand less than both liquids and gases; to study distance learning courses. Practice Solids Liquids and Gases MCQ Questions, download Apple Book (Free Sample) for online degree programs.
Physical and Chemical Changes MCQs with Answers PDF Download: Quiz 14
When solids are heated, they
- expand more than liquids
- expand more than gases but less than liquids
- expand more than liquids but less than gases
- expand less than both liquids and gases
The change of shape of liquid according to the shape of container is due to
- space between particles
- collision of particles
- movement of particles
- force of attraction between particles
Melting point of 'sulphur' is
- 113 °C
- 311 °C
- both
- none
To separate the molecules of ethene dichloride, the compound is
- heated lightly
- heated gently
- heated strongly
- heated for a long time
For security and military purpose, ammonia is used in
- explosives
- bullets
- flash bangs
- tear gas shells
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