Simple Chemical Reactions Multiple Choice Questions and Answers 1 PDF Book Download

Simple chemical reactions multiple choice questions (MCQs), simple chemical reactions quiz answers, test prep 1 to learn online grade 7 science for Cambridge lower secondary certificate. Physical and chemical change MCQs, simple chemical reactions quiz questions and answers for online elementary school classes. Learn physical and chemical change test prep for distance learning.

Learn elementary school science MCQs: physical and chemical change, with choices molecules, products, protons, and atoms for online elementary school classes. Free science study guide for online learning physical and chemical change quiz questions to attempt multiple choice test for online courses.

MCQs on Simple Chemical Reactions Worksheets 1 PDF Book Download

MCQ: Chalk, limestone, marble, eggshells and seashells are made of

  1. calcium hydroxide
  2. calcium oxide
  3. calcium carbonate
  4. calcium chloride

C

MCQ: Conservation of mass is obtained when total mass of reactants is equal to total mass of

  1. products
  2. molecules
  3. protons
  4. atoms

A

MCQ: Chemical changes are

  1. reversible
  2. irreversible
  3. interchangeable
  4. non interchangeable

B

MCQ: If baking soda or fruit salt is mixed with vinegar, there takes place a

  1. chemical reaction
  2. physical reaction
  3. transference
  4. both a and b

A

MCQ: Burning of fossils fuel results in production of

  1. bio gas
  2. oxygen
  3. carbon dioxide
  4. nitrogen

C