KCET · Chemistry · General Principles and Processes of Isolation of Metals
Identify the ore not cotaining iron.
- A limonite
- B siderite
- C carnallite
- D chalcopyrites
Answer & Solution
Correct Answer
(C) carnallite
Step-by-step Solution
Detailed explanation
Limonite
\(-\mathrm{Fe}_{2} \mathrm{O}_{3} \cdot 3 \mathrm{H}_{2} \mathrm{O}\)
Siderite
- \(\mathrm{FeCO}_{3}\)
Carnallite
- \(\mathrm{KCl} \cdot \mathrm{MgCl}_{2} \cdot 6 \mathrm{H}_{2} \mathrm{O}\)
Chalcopyrites
- \(\mathrm{CuFeS}_{2}\)
\(-\mathrm{Fe}_{2} \mathrm{O}_{3} \cdot 3 \mathrm{H}_{2} \mathrm{O}\)
Siderite
- \(\mathrm{FeCO}_{3}\)
Carnallite
- \(\mathrm{KCl} \cdot \mathrm{MgCl}_{2} \cdot 6 \mathrm{H}_{2} \mathrm{O}\)
Chalcopyrites
- \(\mathrm{CuFeS}_{2}\)
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