Chemical Periodicity - Online Test

Total Number of Questions in this Test: 10
Total Number of Questions Answered: 0
Total Number of Questions Skipped: 0


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Question : 1

Portland cement is manufactured by using

Options :
  •  lime stone, clay and sand
  •  lime stone, gypsum and sand
  •  lime stone, gypsum and alumina
  •  lime stone, clay and gypsum