Physics, asked by chintuvineeth, 1 year ago

22 carat gold is used for making ornaments it means that 22 carat of pure gold is alloyed with 2 parts of either silver or copper.why we add 2 parts of either silver or copper explain? please help me

Answers

Answered by keerthika1998lekha
7
This is because gold in its pure form is very malleable i.e. it can be easily modified into shapes by beating it with hammer and very dense.So if ornaments are made out of pure gold then a small force can cause the ornament to collide.So some amount of silver or copper makes gold strong and less malleable.That's why goldsmiths and jewellers add copper (often) and silver (rarely) to gold when making jewellery. Copper is melted together with gold to make an alloy, which can then be beaten, drawn or twisted into various patterns.Gold for jewellery is measured in carats. 24 carats refers to the purest (99%) gold. It's used for making gold biscuits and coins. 22 carats (91% gold) and 18 carats (75% gold) are more popular for making jewellery.

chintuvineeth: why not surely
chintuvineeth: are u making it big
keerthika1998lekha: i made it yaar
keerthika1998lekha: evn more bigger?
chintuvineeth: no no its k thanq u so much
keerthika1998lekha: wlcm nd pls mark as bst
chintuvineeth: where will be the best option
keerthika1998lekha: another person shld answer this question,thn only u can choose mine as best
chintuvineeth: ok
kvnmurty: ):
Similar questions