Grade 7 English MCQs

Physical and Chemical Changes Multiple Choice Questions Test 21 Tests pdf Download

Practice science test 21 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 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. Free science study guide to learn iron and sulphur quiz 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. Non-chemical change
  4. Biological change

A

MCQ. In process of iron and Sulphur forming iron sulfide, product is/products are

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

D

MCQ. In agricultural use, ammonia is a useful component in

  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