Grade 7 English MCQs

Physical and Chemical Changes Multiple Choice Questions Test 11 Tests pdf Download

Practice science test 11 on physical and chemical changes MCQs, grade 7 iron and sulphur multiple choice questions and answers. Iron and sulphur revision test has science worksheets, answer key with choices as yellow to brown, grey to black, yellow to dark grey and grey to black of multiple choice questions (MCQ) with iron and sulphur quiz as heating of mixture of sulphur and iron, turns color from for competitive exam prep. Free science study guide to learn iron and sulphur quiz to attempt multiple choice questions based test.

MCQs on Physical and Chemical Changes: Worksheets 11 Quiz pdf Download

MCQ. Heating of mixture of Sulphur and iron, turns color from

  1. grey to black
  2. yellow to brown
  3. yellow to dark grey
  4. grey to black

C

MCQ. When gas is cooled down, it changes its state to liquid, this is called

  1. melting
  2. freezing
  3. condensation
  4. sublimation

C

MCQ. Polyethene was discovered in

  1. 1733
  2. 1833
  3. 1933
  4. 1633

C

MCQ. Smell of ammonia is

  1. sweet
  2. attractive
  3. weak
  4. strong and pungent

D

MCQ. Long chains of atoms are linked by

  1. hydrogen
  2. oxygen
  3. nitrogen
  4. carbon

D