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Question
Iron is _______.
Options
more reactive than zinc
more reactive than aluminium
less reactive than copper
less reactive than aluminium
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Solution
Iron is less reactive than aluminium.
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The minerals from which the metal can be separated economically are called ores. Ores contain many types of impurities such as soil, sand and rocky substances along with metal compounds. These impurities are called gangue.
Metals can be extracted from their ores by means of various methods of separation. The process of extraction of metal in a pure state from the ores is also a part of metallurgy.
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- Which processes are involved in the branch of metallurgy? What is metallurgy?
- Which metals are found in a free state?
- In what forms are metals found in combined state?
- What is gangue?
Which of the following metals exist in their native state in nature?
- Cu
- Au
- Zn
- Ag
