Define (i) mineral (ii) ore.

Aluminum occurs in combined state whereas gold is found in free state in nature. Why?

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1 Answers

The elements or compounds which occur naturally in the earth's crust are known as minerals. 

The mineral from which a particular metal can be profitably extracted is called ore. 

Gold is very less reactive whereas aluminium is a very reactive element. Therefore, aluminium reacts with other elements or compounds more than gold. Thus, aluminium occurs in combined state while gold occurs in free state

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