Elements and Compounds Multiple Choice Quiz Questions 8 pdf Download

Practice science quiz 8 on elements and compounds MCQs, grade 7 what is element multiple choice questions. Free what is element guide has science worksheet with answering options hydrolysis, electrolysis, photolysis and all of them of multiple choice questions (MCQ) with what is element quiz as process which involves breakdown of element by pass it through electricity is called for exam prep. Study to learn what is element quiz to attempt multiple choice questions based test.

MCQs on Elements and Compounds - Quiz 8

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