Simple Chemical Reactions Multiple Choice Questions 1 PDF Download

Practice simple chemical reactions MCQs, grade 7 online science test 1, physical and chemical change multiple choice questions and answers. Physical and chemical change revision test has science worksheets, helping answer key with choices as calcium oxide, calcium hydroxide, calcium carbonate and calcium chloride of multiple choice questions (MCQ) with physical and chemical change quiz as chalk, limestone, marble, eggshells and seashells are made of for competitive exam prep, viva interview questions. Free science study guide to practice physical and chemical change quiz to attempt multiple choice questions based test.

MCQs on Simple Chemical Reactions Quiz PDF Download Worksheets 1

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

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

C

MCQ. The conservation of mass is obtained when the 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 the production of

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

C