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Metals And Non-metals

Question

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

Solution

Hardness of a substance is its ability to resist cutting, scratching and grinding. Iron, aluminium and lead are hard metals.

Some More Questions From Metals and Non-metals Chapter

What is meant by tensile strength?

Why are metals good conductors of heat and electricity?

Why do metals possess lustre?

Why are metals generally ductile and malleable?

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?

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