GK
ELEMENTS COMPOUNDS SUBSTANCES METALS AND NON METALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fuel
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Jewellery
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Machinery
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Thermometers
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Detailed explanation-1: -Gold is one of the least reactive metals. It generally does not react with oxygen, water or acids and loses its lustre. Gold is also very ductile and malleable. Therefore, it is used for making jewellery.
Detailed explanation-2: -Money, money, money: Gold doesn’t just signify jewellery value – it has also long been used as a medium of exchange or money. The first known use of gold in transactions dates back more than 6000 years – gold coins were minted under the order of King Croesus of Lydia (a region of present-day Turkey) in about 560 BC.
Detailed explanation-3: -Platinum, gold, and silver are used to make jewellery because they are very lustrous. Also, they do not react with air or oxygen and do not corrode easily.
Detailed explanation-4: -Gold’s beauty, value and its many other unique qualities make it the material of choice in many industries. Most gold–78 percent of the yearly gold supply–is made into jewelry.