Physical and Chemical Changes Multiple Choice Questions and Answers 21 PDF Download

Learn physical and chemical changes multiple choice questions, grade 7 science online test 21 for elementary school degree online courses, distance learning for exam prep. Practice iron and sulphur multiple choice questions (MCQs), physical and chemical changes quiz questions and answers for science class for 7th grade science tutoring online free.

Study elementary school science multiple choice questions (MCQs): color of solid iron is, for free online courses with choices brown, green, grey, and black, iron and sulphur quiz for teachers on net with online teaching resources for science teachers with science practice. Free science study guide for online learning iron and sulphur quiz questions to attempt multiple choice questions based test.

MCQs on Physical and Chemical Changes Worksheets 21 Quiz PDF Download

MCQ: Color of solid iron is

  1. green
  2. brown
  3. grey
  4. black

C

MCQ: Alteration of material without changing its chemical make-up is known as

  1. physical change
  2. chemical variation
  3. biological change
  4. chemical change

A

MCQ: Exothermic reaction of two elements, iron and sulfur, form compound,

  1. iron only
  2. sulphur only
  3. iron and sulphur both
  4. iron sulfide

D

MCQ: Ammonia' is an important component of

  1. water
  2. soil
  3. fertilizers
  4. insecticides

C

MCQ: Name of chemist who started plastic industry, is

  1. George Conner
  2. Alex Martin
  3. Leo Baekeland
  4. Robin Norman

C