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Q.

24-carat gold can be converted to 18-carat gold by alloying it with?


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a

Copper

b

Silver

c

Both of these

d

None of these 

answer is C.

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Detailed Solution

18-carat gold contains 75% gold and the remaining 25% is the alloy of silver or copper. The durability and hardness of gold can be increased by adding other metals like silver or copper.
 
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