Question

Which of the following is/are the properties of diamond?

• A. It is the hardest substance.
• B. It has a high refractive index.
• C. It cannot conduct electricity.
• D. Like active metals, it reacts vigorously with water.

Answer 1

Answer: (A), (B), (C)

It cannot conduct electricity.

The properties of diamond include-
a. It is the hardest substance.
b. It has a high refractive index.
c. It is a bad conductor of electricity.
d. It has a high melting point.
e. It is chemically stable.
Under normal conditions, allotropes of carbon (diamond, graphite) do not react with water.
Carbon and its allotropes are non-metals and non-metals do not react directly with water.