Question

(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.

Answer 1

a) Most probably metals available in nature in a combined state  but sometimes they can also available in free state .The two important metals which are available in nature mainly in the free state are  gold and silver because these two metals are considered as non reactive metals.  

b)  Sodium and Magnesium are the two metals those are present in combined state. A compound state contains  minimum two dissimilar elements combined in a definite ratio.

c) Iron (III) oxide is one of the iron compound which is available in haematite ore and its chemical formula is $Fe_2O_3$.

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Answer 2

a. Gold, Silver

b. Sodium, Magnesium

c.Ferric oxide-Fe2O 3