Class 7 Science MCQs - Chapter 17

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

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The Physical and chemical changes Multiple Choice Questions (MCQs) with Answers PDF (physical and chemical changes MCQs PDF e-Book) download Ch. 17-21 to study Grade 7 Science Course. Learn Physical and Chemical Changes Quiz Questions and Answers to learn online classes courses. The Physical and Chemical Changes MCQs App Download: Free learning app for iron and sulphur, physical changes, making ammonia, making plastics test prep for online degree programs.

The Multiple Choice Question (MCQ): The color of solid iron is; "Physical and Chemical Changes" App Download (Free) with answers: Brown; Green; Grey; Black; to learn online classes courses. Solve Iron and Sulphur MCQ Questions, download Google eBook (Free Sample) for online classes.

Physical and Chemical Changes MCQs with Answers PDF Download: Quiz 21

MCQ 101:

The color of solid iron is

green
brown
grey
black

MCQ 102:

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

physical change
chemical variation
biological change
chemical change

MCQ 103:

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

iron only
sulphur only
iron and sulphur both
iron sulfide

MCQ 104:

'Ammonia' is an important component of

water
soil
fertilizers
insecticides

MCQ 105:

The name of the chemist who started plastic industry, is

George Conner
Alex Martin
Leo Baekeland
Robin Norman

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