Class 7 Courses

Chapter 17: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 17

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

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

MCQ 101:

The color of solid iron is

  1. green
  2. brown
  3. grey
  4. black
MCQ 102:

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

  1. physical change
  2. chemical variation
  3. biological change
  4. chemical change
MCQ 103:

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

  1. iron only
  2. sulphur only
  3. iron and sulphur both
  4. iron sulfide
MCQ 104:

'Ammonia' is an important component of

  1. water
  2. soil
  3. fertilizers
  4. insecticides
MCQ 105:

The name of the chemist who started plastic industry, is

  1. George Conner
  2. Alex Martin
  3. Leo Baekeland
  4. Robin Norman

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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 (iOS & Android)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

6th Grade Science App (iOS & Android)