Class 7 Courses

Chapter 18: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 18

Physical and Chemical Changes Quiz Questions and Answers PDF - 11

Free Physical and chemical changes Quiz Questions and Answers PDF (physical and chemical changes Quiz PDF e-Book) download Ch. 18-11 to learn Grade 7 Science Course. Solve Iron and Sulphur MCQs PDF, Physical and Chemical Changes Quiz Questions and Answers to learn online certification courses. The Physical and Chemical Changes Quiz App: Download free learning app for iron and sulphur, physical changes, polythene, making ammonia, making plastics test prep for online schools.

The Quiz: By heating color of mixture of sulphur and iron which is yellow turns to; "Physical and Chemical Changes" App Download (iOS & Android) with answers ‘brown’, ‘black’, ‘dark grey’ and ‘white’ to learn online certification courses. Study Iron and Sulphur MCQ Questions, download Amazon eBook (Free Sample) for distance learning.

Physical and Chemical Changes Questions & Answers PDF Download: MCQ Quiz 11

MCQ 51: By heating the color of mixture of sulphur and iron which is yellow turns to

  1. black
  2. brown
  3. dark grey
  4. white

MCQ 52: When gas is cooled down, it changes its state into liquid. This is called

  1. melting
  2. freezing
  3. condensation
  4. sublimation

MCQ 53: Polythene was discovered in

  1. 1733
  2. 1833
  3. 1933
  4. 1633

MCQ 54: The odour of ammonia is

  1. sweet
  2. attractive
  3. weak
  4. strong and pungent

MCQ 55: Long chain of atom is linked by

  1. hydrogen
  2. oxygen
  3. nitrogen
  4. carbon

Physical and Chemical Changes Learning App: Free Download Android & iOS

The App: Physical and Chemical Changes Quiz App to learn Physical and Chemical Changes Questions and Answers, 7th Grade Science Quiz App, and Earth Science Quiz App. The free "Physical and Chemical Changes" App to download Android & iOS Apps includes complete analytics with interactive assessments. Download App Store & Play Store learning Applications & enjoy 100% functionality with subscriptions!

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)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (iOS & Android)