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Grade 7 Science MCQs

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Physical and Chemical Changes Multiple Choice Questions Online p. 21

Learn Physical and chemical changes multiple choice questions and answers, physical and chemical changes quiz answers PDF to learn grade 7 science test 21 for online courses. Iron and Sulphur MCQs, physical and chemical changes quiz questions and answers for online certifications. "Physical and Chemical Changes MCQ" PDF Book: iron and sulphur, physical changes, making ammonia, making plastics test prep for online elementary school.

"The color of solid iron is" Multiple Choice Questions (MCQ) on physical and chemical changes with choices brown, green, grey, and black for online certifications. Practice iron and sulphur quiz questions for school certificate programs for online school courses.

MCQs on Physical and Chemical Changes Quiz

MCQ: The color of solid iron is

green
brown
grey
black

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

physical change
chemical variation
biological change
chemical change

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

iron only
sulphur only
iron and sulphur both
iron sulfide

MCQ: 'Ammonia' is an important component of

water
soil
fertilizers
insecticides

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

George Conner
Alex Martin
Leo Baekeland
Robin Norman

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