Generally,metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?

Provide one exception for each of the following general statements:
$(i)$ Metals are lustrous.
$(ii)$ Metals are solids at room temperature.
$(iii)$ Metals have high melting points.
$(iv)$ Non-metals are non-lustrous.
$(v)$ Non-metals are insulators or non-conductors of electricity.

Which of the following non-metals is a liquid?

You are given a hammer,a battery,a bulb,wires,and a switch.
$(a)$ How could you use them to distinguish between samples of metals and non-metals?
$(b)$ Assess the usefulness of these tests in distinguishing between metals and non-metals.

Name one metal and one non-metal that are found in a liquid state at room temperature.

Pavan separates some materials into two groups and notes their properties. These properties are given in the table below:

Group $1$	Group $2$
They cannot be beaten into sheets.	They can be beaten into sheets.
When one end is in contact with a hot object,the other end does not get hot quickly.	When one end is in contact with a hot object,the other end gets hot quickly.
They cannot be drawn into thin wires.	They can be drawn into thin wires.

Which of the following statements cannot be false?