Question

You are given a hammer, a battery, a bulb, wires and a switch.How could you use them to distinguish between samples of metals and non-metals?

• A. Using physical properties of metals and non metals
• B. Using hammer only
• C. Using bulb only
• D. Using both bulb and hammer

Answer 1

The correct option is A

Using physical properties of metals and non metals

We can distinguish with the physical properties of metals and non metals.We can use a hammer to beat the sample of metals and non-metals. After beating metal changes into thin sheet (due to malleable) and at the time of strike sound is also produced (due to sonorous). But non-metals are broken into small pieces due to brittle nature and do not produces sound.A battery, a bulb, wires and a switch is used to set up a electrical circuit and test the samples of metals and non metals in this circuit. We find that metals are good conductor of electricity and non-metals are bad conductor of electricity.