Simple Chemical Reactions Multiple Choice Questions and Answers 1 PDF Download

Learn simple chemical reactions multiple choice questions, grade 7 science online test 1 for elementary school degree online courses, distance learning for exam prep. Practice physical and chemical change multiple choice questions (MCQs), simple chemical reactions quiz questions and answers for science class for grade 7 assessment test.

Study elementary school science multiple choice questions (MCQs): chalk, limestone, marble, eggshells and seashells are made of, for free online courses with choices calcium oxide, calcium hydroxide, calcium carbonate, and calcium chloride, physical and chemical change quiz for online kids trivia questions and answers for kids learning and open learning with distance education. Free science study guide for online learning physical and chemical change quiz questions to attempt multiple choice questions based test.

MCQs on Simple Chemical Reactions Worksheets 1 Quiz PDF 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