2. Find the odd one out.
a. Pyrrhotite
b. Ferrite
c. Neodynium
d. Coulumbite
3. Based on magnetic property, arrange the following iron ores in ascending
a. Hematite < Siderite < Magnetite
b. Hematite < Magnetite < Siderite
c. Siderite < Magnetite <Hematite
d. Siderite < Hematite < Magnetite
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Answer:
1) The answer is Neodynium
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