Question

2.State the fraction of gold present in an 18 carat gold piece.
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Answer 1

Explanation:

Answer. In 18K gold is 75%gold mixed with 25%of other metals like copper , silver , etc .

Answer 2

Answer:

'Caratage' is the measurement of purity of gold alloyed with other metals. 24 carat is pure gold with no other metals. Lower caratages contain less gold; 18 carat gold contains 75 per cent gold and 25 per cent other metals, often copper or silver. The minimum caratage for an item to be called gold varies by country.