Question

State whether the following statements are true or false :

If a diamond is heated above 1500°C in the absence of air, it is transformed into graphite.

• A. True
• B. False

Answer 1

The correct option is A True

• Diamond is one of the crystalline allotropes of Carbon.
• It has a tetrahedral geometry in which each carbon atom is bonded with four other Carbon atoms using a covalent bond.
• When a diamond is heated above $1500°\mathrm{C}$ in the absence of air, the Carbon-Carbon bond present in the diamond is broken and it takes a layered structure.
• That is, it is transformed into Graphite.

Hence, the given statement is True.