Question

8. Which of the following statements is incorrect?

• A. most metals are bad conductors of heat and electricity
• B. gold and silver are most malleable metals
• C. mercury is the only liquid metal
• D. bromine is the only liquid non-metal

Answer 1

The correct option is A

most metals are bad conductors of heat and electricity

Explanation for the correct option:

a) Metals contain free electrons to conduct heat and electricity. Hence, it is classified as a good conductor of electricity.

Explanation for the incorrect options:
b) Gold and silver are the most malleable metals. They can be flattened into thin sheets.

c) Mercury is the only metal found in the liquid state at room temperature. It has a low melting point.

d) Bromine is the only liquid non-metal. It possesses strong intermolecular forces and has very high boiling points.

Therefore, option A is incorrect.