Grade 7 English MCQs

Simple Chemical Reactions Multiple Choice Questions Test 1 Tests pdf Download

Practice science test 1 on simple chemical reactions MCQs, grade 7 chemical and physical changes multiple choice questions and answers. Chemical and physical changes revision test has science worksheets, answer key with choices as calcium oxide, calcium hydroxide, calcium carbonate and calcium chloride of multiple choice questions (MCQ) with chemical and physical changes quiz as chalk, limestone, marble, eggshells and seashells are made from for competitive exam prep. Free science study guide to learn chemical and physical changes quiz 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 from

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

C

MCQ. Conservation of mass if obtained when total mass of reactants in 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. reliable

B

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

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

A

MCQ. Burning of fossils fuels results in production of gas

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

C