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Question: Answered & Verified by Expert
Which of the following statements is incorrect?
ChemistryGeneral Principles and Processes of Isolation of MetalsJEE Main
Options:
  • A Calamine and siderite are carbonates
  • B Argentite and cuprite are oxides
  • C Zinc blende and pyrites are sulphides.
  • D Malachite and azurite are ores of copper
Solution:
2486 Upvotes Verified Answer
The correct answer is: Argentite and cuprite are oxides
A Calamine =ZnCO3 , Sidereite =FeCO3
B Argentite =Ag2S and Cuprite =Cu2O
C Zinc blende =ZnS , Pyrites =FeS2
D Malachite =CuCO3CuOH2 , Azurite =2CuCO3CuOH2

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