Question

7.Diamonds can be synthesised by

subjecting pure carbon to-

a) very high pressure

b) very high temperature

c) very high pressure and temperature

d) very low pressure and temperature​

Answer 1

Answer:

diamonds can be synthesised by subjecting pure carbon to very high pressure and temperature.

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Answer 2

Answer:

Option c) very high pressure and temperature is the correct option. Diamonds can be synthesized by subjecting pure carbon to very high pressure and temperature.

Explanation:

Both Natural diamonds and synthetic diamonds are formed by subjecting pure carbon to very high pressure and temperature.

• Natural diamonds are formed in the earth's interior or the mantle of the earth when fragments of carbon are subjected to very high temperature and pressure, which crystalizes the carbon throughout millions and billions of years, and diamonds or gemstones are formed.

• Synthetic diamonds are diamonds that are manufactured artificially, the only difference between natural diamonds and synthetic diamonds is that natural diamonds are around 1 billion to 3 billion years old. Very high temperatures (approx 2000 to 2200 degrees Fahrenheit) and high pressure of about 3,28,854 kilograms per square inch are used to manufacture synthetic diamonds.