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Q.

Which of the following represents haematite ore?

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a

${Fe}_{3} O_{4}$

b

${Fe}_{2} O_{3} \cdot 3 H_{2} O$

c

${Fe}_{2} O_{3}$

d

${FeCO}_{3}$

answer is A.

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Detailed Solution

The ore known as haematite has the same chemical makeup as magnetite but a spinel structure. Banded iron formations have significant hematite deposits.

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