Class 7 Science MCQs - Chapter 18
Physical and Chemical Changes Quiz Questions and Answers PDF - 7
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Free Physical and chemical changes Quiz Questions and Answers, physical and chemical changes Quiz PDF Download, Book Test 18-7 to study class 7 science online courses. Download Polyvinyl Chloride MCQs PDF, physical and chemical changes quiz questions and answers to learn online courses. The Physical and Chemical Changes Quiz App Download: Free learning app for polyvinyl chloride, physical changes, magnesium and oxygen, ammonia and fertilizers, chemical changes test prep for online degrees.
The Quiz: To make PVC, molecules of vinyl chloride are; "Physical and Chemical Changes" App Download iOS & Android (Free) with answers further heated, condensed, treated with ammonia and gathered to form a chain to learn online courses. Study polyvinyl chloride quiz questions, download Amazon eBook (Free Sample) for online degree programs.
Physical and Chemical Changes Questions & Answers PDF Download: MCQ Quiz 7
MCQ 31: To make PVC, molecules of vinyl chloride are
- condensed
- further heated
- treated with ammonia
- gathered to form a chain
MCQ 32: When particles cool down, energy changes
- from kinetic to heat
- from kinetic to potential
- from potential to kinetic
- from thermal to potential
MCQ 33: The color of magnesium oxide is
- white
- blue
- grey
- pink
MCQ 34: Ammonia fertilizers are made by two components, they are
- ammonia and hydrogen
- ammonia and nitric acid
- nitrogen and hydrogen
- nitrogen and water
MCQ 35: During chemical reaction, energy is
- taken in
- given out
- given out or taken in
- transferred
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Physical and Chemical Changes MCQ Book Questions
- In a reflecting telescope, a large concave mirror bounces all the light coming through the
- Tanks that supply water to towns are built at
- Number of gases joined together to make PVC is
- Chalk, limestone, marble, eggshells and seashells are made of
- Enzymes that digest fats are known as
- Stopper is made up of