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 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
The color of solid iron is
- green
- brown
- grey
- black
Alteration of material without changing its chemical make-up is known as
- physical change
- chemical variation
- biological change
- chemical change
The exothermic reaction of two elements, iron and sulfur, form the compound,
- iron only
- sulphur only
- iron and sulphur both
- iron sulfide
'Ammonia' is an important component of
- water
- soil
- fertilizers
- insecticides
The name of the chemist who started plastic industry, is
- George Conner
- Alex Martin
- Leo Baekeland
- Robin Norman
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Grade 8 Science MCQ with Answers
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