Class 7 Science MCQs - Chapter 18

Physical and Chemical Changes Multiple Choice Questions (MCQ Quiz) PDF Download - 21

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The Book Physical and chemical changes Multiple Choice Questions and Answers (MCQs), physical and chemical changes quiz answers PDF 21 to study online courses, class 7 science tests. Practice Iron and Sulphur MCQs, physical and chemical changes quiz questions and answers for online certifications. The App Physical and Chemical Changes MCQ e-Book PDF Download: iron and sulphur, physical changes, making ammonia, making plastics test prep for online elementary school.

The Multiple Choice Question (MCQ Quiz): The color of solid iron is PDF, "Physical and Chemical Changes MCQ" App Download (Free) with brown, green, grey, and black choices for online certifications. Solve iron and sulphur quiz questions, download Google eBook (Free Sample) for online school courses.

Class 7 Science: Physical and Chemical Changes MCQs Questions PDF Download

MCQ: The color of solid iron is

A) green

B) brown

C) grey

D) black

MCQ: 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: 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: 'Ammonia' is an important component of

A) water

B) soil

C) fertilizers

D) insecticides

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

A) George Conner

B) Alex Martin

C) Leo Baekeland

D) Robin Norman

Practice MCQs: Class 7 Science Mock Tests

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Energy Resources: Science MCQs

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