Class 7 Online Courses

Chapter 18: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 18

Physical and Chemical Changes Quiz Questions and Answers PDF - 7

The e-Book Physical and chemical changes Quiz Questions and Answers, physical and chemical changes Quiz Answers PDF, test 7 to study online class 7 science certificate 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

A) condensed
B) further heated
C) treated with ammonia
D) gathered to form a chain

MCQ 32: When particles cool down, energy changes

A) from kinetic to heat
B) from kinetic to potential
C) from potential to kinetic
D) from thermal to potential

MCQ 33: The color of magnesium oxide is

A) white
B) blue
C) grey
D) pink

MCQ 34: Ammonia fertilizers are made by two components, they are

A) ammonia and hydrogen
B) ammonia and nitric acid
C) nitrogen and hydrogen
D) nitrogen and water

MCQ 35: During chemical reaction, energy is

A) taken in
B) given out
C) given out or taken in
D) transferred

Physical and Chemical Changes Learning App & Free Study Apps

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Physical and Chemical Changes App (Android & iOS)

Physical and Chemical Changes App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)