Physical and Chemical Changes Multiple Choice Questions 21 PDF Download

Learn physical and chemical changes MCQs, grade 7 science test 21 for online courses learning and test prep, iron and sulphur multiple choice questions and answers. Iron and sulphur revision test includes science worksheets to learn for 7th grade science tutoring online free.

Science multiple choice questions (MCQ) on color of solid iron is with options brown, green, grey and black, iron and sulphur quiz for competitive exam prep, viva interview questions with answers key. Free science study guide to learn iron and sulphur quiz to attempt multiple choice questions based test.

MCQs on Physical and Chemical Changes Quiz PDF Download Worksheets 21

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