Grade 7 English MCQs

Physical and Chemical Changes Multiple Choice Questions Test 5 Tests pdf Download

Practice science test 5 on physical and chemical changes MCQs, grade 7 polyethene multiple choice questions and answers. Polyethene revision test has science worksheets, answer key with choices as one carbon and one hydrogen atom, two carbon and three hydrogen atoms, two carbon and four hydrogen atoms and three carbon and six hydrogen atoms of multiple choice questions (MCQ) with polyethene quiz as ethene is composed of for competitive exam prep. Free science study guide to learn polyethene quiz to attempt multiple choice questions based test.

MCQs on Physical and Chemical Changes Quiz pdf Download Worksheets 5

MCQ. Ethene is composed of

  1. Two carbon and three hydrogen atoms
  2. One carbon and one hydrogen atom
  3. Two carbon and four hydrogen atoms
  4. Three carbon and six hydrogen atoms

C

MCQ. To make flexible items, a substance is added to PVC, this substance is known as

  1. ester
  2. ketone
  3. halo alkanes
  4. plasticizer

D

MCQ. Symbol for Sulphur is

  1. Fe
  2. Su
  3. S
  4. Ti

C

MCQ. Natural substances made up of long molecules are

  1. plastic and rubber
  2. rubber and wool
  3. wool and plastic
  4. wood and plastic

B

MCQ. Density of gases is

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

D