they do not react in their natural environment normally
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B
ladies of royalty wear them as jewellery
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C
they are worn by noblemen
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D
even acids cannot dissolve them without strong heat
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Solution
The correct option is A they do not react in their natural environment normally Gold and silver do not react readily with any other elements in their natural environment normally.
Due to this, gold and silver are found in free state in Earth's crust. so, they are called noble metals.