Grade 7 English MCQs

Elements and Compounds Multiple Choice Questions Test 8 Tests pdf Download

Practice science test 8 on elements and compounds MCQs, grade 7 what is element multiple choice questions and answers. What is element revision test has science worksheets, answer key with choices as hydrolysis, electrolysis, photolysis and all of them of multiple choice questions (MCQ) with what is element quiz as the process which involves breakdown of element by pass it through electricity is called for competitive exam prep. 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 breakdown of element by pass it through electricity is called

  1. electrolysis
  2. hydrolysis
  3. photolysis
  4. all of them

A

MCQ. Chinese thought that number of elements are

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

D

MCQ. Low densities, low melting and boiling point and poor conductivity is found in

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

B

MCQ. Air ships and balloons uses gas called

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

C

MCQ. Compound which on heating yields black solid, copper oxide and colorless gas, carbon dioxide is

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

A