11 grade chemistry others
Pure gold is:(a)24 carat(b)22carat(c)20carat(d)18carat
Pure gold is:(a)24 carat(b)22carat(c)20carat(d)18carat
1 Answer
Askiitians Tutor Team
To determine the carat of pure gold, we need to understand what "carat" means in the context of gold purity. Carat in this context refers to the measure of gold purity in an alloy, where pure gold is defined as 24 carats.
Here's a breakdown of the carat system:
24 carat gold is pure gold with no other metals mixed in. It is considered 100% gold.
22 carat gold contains 22 parts gold and 2 parts other metals, which means it is about 91.67% pure gold.
20 carat gold contains 20 parts gold and 4 parts other metals, which translates to 83.33% pure gold.
18 carat gold contains 18 parts gold and 6 parts other metals, making it 75% pure gold.
Therefore, the correct answer is:
(a) 24 carat
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