Question

Which of the following conditions are required for the formation of diamond?

• A. Very high temperature and pressure
• B. Very high temperature, but a very low pressure
• C. Very low temperature, but a very high pressure
• D. Very low temperature and pressure

Answer 1

The correct option is A

Very high temperature and pressure

• In nature, carbon exists in two forms - ‘free state’ and ‘combined state’.
• The natural forms in which an element exists in a free state in nature are known as allotropes of an element.
• Carbon has majorly three allotropes - Diamond, Graphite, Buckminsterfullerene.
• Diamond is a transparent substance with extraordinary sparkle.
• Diamonds are formed deep inside the earth's surface in the mantle layer.
• Due to very high temperature and pressure, the carbon atoms get covalently bonded with each other giving a three-dimensional geometry known as Diamond.

Hence, the given option (a) very high temperature and pressure are correct.