Physical and Chemical Changes Multiple Choice Questions 33 PDF Download

Practice physical and chemical changes MCQs, grade 7 online science test 33, polyethene multiple choice questions and answers. Polyethene revision test has science worksheets, helping answer key with choices as low pressures, high temperatures, high pressures and low temperatures of multiple choice questions (MCQ) with polyethene quiz as as compared to low density polythene, high density polythene can withstand for competitive exam prep, viva interview questions. Free science study guide to practice polyethene quiz to attempt multiple choice questions based test.

MCQs on Physical and Chemical Changes Quiz PDF Download Worksheets 33

MCQ. As compared to low density polythene, the high density polythene can withstand

  1. high temperatures
  2. low pressures
  3. high pressures
  4. low temperatures

A

MCQ. The particles of gases are

  1. packed tightly
  2. packed closely
  3. small as compared to that of solids and liquids
  4. far apart

D

MCQ. The color of 'nitrogen' gas is

  1. brown
  2. red
  3. green
  4. purple

A

MCQ. After sometime the particles of solids start to move far apart, when

  1. kinetic energy is greater than thermal energy
  2. kinetic energy is greater than force of attraction
  3. potential energy is greater than kinetic energy
  4. potential energy is greater than thermal energy

B

MCQ. Chemical changes are also known as

  1. physical reactions
  2. chemical reactions
  3. biological reactions
  4. prominent reactions

B