Class 7 Online Courses

Chapter 18: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 18

Physical and Chemical Changes Multiple Choice Questions PDF Download - 21

Free Physical and chemical changes Multiple Choice Questions and Answers (MCQs), physical and chemical changes MCQ Quiz PDF, test 21 to study online class 7 science certificate courses. Practice Iron and Sulphur MCQs PDF, physical and chemical changes quiz questions and answers to learn online classes courses. Free learning App: Physical and Chemical Changes MCQs App Download & e-Book for iron and sulphur, physical changes, making ammonia, making plastics test prep for online degree programs.

The Multiple Choice Question (MCQ Quiz): Color of solid iron is; "Physical and Chemical Changes" App Download (Free) with answers brown, green, grey and black to learn online classes courses. Solve iron and sulphur quiz questions, download Google eBook (Free Sample) for online classes.

Physical and Chemical Changes Questions & Answers PDF Download: MCQ Quiz 21

MCQ 101: The color of solid iron is

A) green
B) brown
C) grey
D) black

MCQ 102: Alteration of material without changing its chemical make-up is known as

A) physical change
B) chemical variation
C) biological change
D) chemical change

MCQ 103: The exothermic reaction of two elements, iron and sulfur, form the compound,

A) iron only
B) sulphur only
C) iron and sulphur both
D) iron sulfide

MCQ 104: 'Ammonia' is an important component of

A) water
B) soil
C) fertilizers
D) insecticides

MCQ 105: The name of the chemist who started plastic industry, is

A) George Conner
B) Alex Martin
C) Leo Baekeland
D) Robin Norman

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)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)