Which of the following set of metals is never found in free state?K, Na, CaCu, AgCu, AuAu, Ag
Question
Which of the following set of metals is never found in free state?K, Na, CaCu, AgCu, AuAu, Ag
Solution
The set of metals that is never found in free state is K, Na, Ca. These are all alkali and alkaline earth metals which are highly reactive and are not found in nature in their elemental form. They are always found as part of compounds.
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