Physical and Chemical Changes Multiple Choice Questions and Answers 5 PDF Download

Learn physical and chemical changes MCQs, grade 7 science test 5 for online learning courses and test prep. Polyethene multiple choice questions (MCQs), physical and chemical changes quiz questions and answers include science worksheets for scientific discovery?questions with answers.

Science multiple choice questions (MCQ): 'ethene' is composed of with options 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, polyethene quiz with online tricky riddles for home schooling of private and public school students. Free science study guide to learn polyethene quiz to attempt multiple choice questions based test.

MCQs on Physical and Chemical Changes Worksheets 5 Quiz PDF Download

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 alkane
  4. plasticizer

D

MCQ: Symbol of '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
  4. lower than solids and liquids

D