a
haematite, malachite and limonite
b
chalcocite, calamine and bornite
c
magnetite, haematite and limonite
d
magnetite, chalcocite and bornite
Explanation
Correct Option
cVideo Explanation
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Discussions (11)

ARMSTRONG2222
6 years ago
None of them is correct because even in the selected answer, the bornite is not an ore of iron. It is an ore of copper. The ores of iron includes hematite, magnetite, limonite and siderite.

blerzyn
10 years ago
The selected answer is wrong:
the group of words in the A option suggests the combination of ores for the transition element iron





