Physical and Chemical Changes Multiple Choice Questions and Answers 21 pdf eBooks Download

Learn physical and chemical changes MCQs, grade 7 science test 21, iron and sulphur multiple choice questions and answers. Iron and sulphur revision test has science worksheets, answer key with choices as brown, green, grey and black of multiple choice questions (MCQ) with iron and sulphur quiz as the color of solid iron is for competitive exam prep, viva interview questions. Free science study guide to practice 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