Elements and Compounds Multiple Choice Questions and Answers 8 PDF Download

Learn elements and compounds MCQs, grade 7 science test 8 for online learning courses and test prep. What is element multiple choice questions (MCQs), elements and compounds quiz questions and answers include science worksheets for common core history of science grade 7.

Science multiple choice questions (MCQ): process which involves in breaking down element by passing electricity through it is called with options hydrolysis, electrolysis, photolysis and photosynthesis, what is element quiz for online competitive tests preparation for elementary school admission and high school admission. Free science study guide to learn what is element quiz to attempt multiple choice questions based test.

MCQs on Elements and Compounds Worksheets 8 Quiz PDF Download

MCQ: Process which involves in breaking down element by passing electricity through it is called

  1. electrolysis
  2. hydrolysis
  3. photolysis
  4. photosynthesis

A

MCQ: Chinese thought that number of elements were

  1. 3
  2. 4
  3. 2
  4. 5

D

MCQ: Low densities, low melting, low boiling point and poor conductivity are found in

  1. metals
  2. non metals
  3. alkalis
  4. metalloids

B

MCQ: Air ships and balloons use gas called

  1. oxygen
  2. hydrogen
  3. helium
  4. neon

C

MCQ: A compound which yields in black solid, copper oxide and colorless gas carbon dioxide on heating, is

  1. copper carbonate
  2. iron sulfide
  3. sodium chloride
  4. copper chloride

A