Physical and Chemical Changes Multiple Choice Questions and Answers 24 pdf eBooks Download

Learn physical and chemical changes MCQs, grade 7 online science test 24, physical changes multiple choice questions and answers. Physical changes revision test has science worksheets, helping answer key with choices as freezing, melting, condensation and sublimation of multiple choice questions (MCQ) with physical changes quiz as when liquid is cooled down, it changes into solid, this process is known as for competitive exam prep, viva interview questions. Free science study guide to practice physical changes quiz to attempt multiple choice questions based test.

MCQs on Physical and Chemical Changes Quiz pdf Download Worksheets 24

MCQ. When liquid is cooled down, it changes into solid, this process is known as

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

B

MCQ. To make high temperature for formation of ammonia, substance which is used, is

  1. steel
  2. iron
  3. aluminum
  4. copper

B

MCQ. One or more new substances are formed due to

  1. physical change
  2. chemical change
  3. biological change
  4. state variation

B

MCQ. First thing that happens during chemical reaction is that

  1. a new substance is formed
  2. a substance is reversed to its components
  3. energy is given out
  4. atoms remain same

A

MCQ. Density of liquids is

  1. lower than solids but higher than gases
  2. lower than solids and gases both
  3. higher than solids and gases both
  4. higher than solids but lower than gases

A