What is called ‘black gold?

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Hydrocarbons

Coal

Petroleum

Ether

answer is C.

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Detailed Solution

Concept- Petroleum is referred to as "Black Gold. Petroleum is a yellowish-black liquid that exists naturally under the Earth's surface. It's usually refined, and it's used to make a variety of fuels.
It is clear from the name alone that the material known as "black gold" is a dark colour.
As we all know, gold is a precious, expensive metal. Due to its high cost and worth, black gold is also referred to as gold.
Oil or petroleum is referred to as "Black Gold."
A naturally occurring yellowish-black liquid found below the surface of the Earth is called petroleum.
Typically, it is processed into a variety of fuels.
It is made up of diverse molecular weight hydrocarbons that are found in nature, but it also includes certain additional organic substances. Each type of petroleum has a particular combination of molecules that determines its physical characteristics, such as colour, density, and viscosity.
Both naturally occurring crude oil and petroleum products made from crude oil are referred to by the word petroleum.
Due to the following factors, petroleum is referred to as "Black Gold": -When petroleum is removed from the ground, the crude oil is dark in colour.
Due to its tremendous commercial worth and desirable characteristics, it is sometimes likened to gold.
It is hard to find and scarce on earth.
Its extraction costs a lot of money.
The crude oil that is extracted is black, but after being purified, it takes on a yellowish hue, earning the moniker "gold."
Hence, the correct answer is 3.

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