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(a) Name two metals which are found in nature mainly in the free state (as metallic elements).(b) Name two metals which are always found in combined state.
(c) What iron compound is present in haematite ore? Also write its chemical formula.
(a) Gold and Platinum are found in nature mainly in the free state as they are the least reactive metals.
(b) Sodium and Magnesium are always found in a combined state as they are the most reactive metals.
(c) Iron (III) oxide is present in haematite ore. Its formula is Fe2O3.
Updated on: 10-Oct-2022
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