☰
✕

Metals and Non-metals
Question
Wired Faculty App

Aluminium or copper wire required for electric circuits are coated with a rubber—like material. Why?

Answer

Aluminium or copper wire are good conductors of electricity. They are coated with rubber—like material because when in circuit, there is a current flowing through wire and if you touch the exposed portion, it does not give you a shock. Since rubber like material is bad conductor of electricity.

Sponsor Area

Some More Questions From Metals and Non-metals Chapter

What is meant by hardness of a substance? Name some metals which are hard.

Explain, how can we find out whether a given substance is a metal if we know its electronic configuration.

Demonstrate why some metals are used for making cooking vessels?

Illustrate that metals are good conductors of electricity. Which metals are used for this purpose?

Aluminium or copper wire required for electric circuits are coated with a rubber—like material. Why?

Why is it not possible to group metals and non-metals on the basis of their physical properties? Explain.

What are non-metals?

 

How do we find whether a given element is a non-metal if we know its electronic configuration?

How many non-metals are there? How many of them are solids, liquids and gases?