Physical and Chemical Changes Multiple Choice Quiz Questions 11 pdf Download

Practice science quiz 11 on physical and chemical changes MCQs, grade 7 iron and sulphur multiple choice questions. Free iron and sulphur guide has science worksheet with answering options 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 exam prep. Study to learn iron and sulphur quiz to attempt multiple choice questions based test.

MCQs on Physical and Chemical Changes - Quiz 11

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