The one that is not a carbonate ore is :
Show Hint
- siderite
- bauxite
- malachite
- calamine
The Correct Option is B
Solution and Explanation
Bauxite = Al\(_2\)O\(_3\)\(\cdot\)xH\(_2\)O, a hydrated oxide ore, not a carbonate.
Answer: (2) bauxite
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- Given below are two statements:
Statement I : In froth floatation method a rotating paddle agitates the mixture to drive air out of it.
Statement II : Iron pyrites are generally avoided for extraction of iron due to environmental reasons.
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B Leaching
C Electrolysis
D Hydraulic washing
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Choose the correct answer from the options given below :- Among the following ores Bauxite, Siderite, Cuprite, Calamine, Haematite, Kaolinite, Malachite, Magnetite, Sphalerite, Limonite, Cryolite, the number of principal ores of iron is____.
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