Question 22
What are the favourable qualities given to gold when it is alloyed with copper or silver for the purpose of making ornaments?

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Solution

Gold is soft metal and can easily change its shape with a little force. Therefore, it is not suitable for making ornaments. But when it is alloyed with copper or silver, the gold becomes harder and stronger. Thus, it becomes suitable for making ornaments.

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Assertion:- An alloy of gold with copper or silver is used to make ornaments.

Reason:- Pure gold is soft due to which it cannot be not used to make ornaments.

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