Properties of Metals

How well a substance allows heat or electricity to flow through it.

• Malleablility

• Conductivity

• Luster

• Ductile

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How well a substance reflects light.

• Malleability

• Conductivity

• Luster

• Ductile

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A substance that reflects light well.

• Brittle

• Conductor

• Ductile

• Shiny

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The ability to be made into a wire.

• Malleability

• Conductivity

• Ductile

• Magnetic

A substance that allows heat or electricity to flow through it.

• Insulator

• Conductor

• Semiconductor

• Malleable

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Aluminium is used for making cooking uten¬sils. Which of the following properties of alu¬minium are responsible for the same?

• (i) Good thermal conductivity

• (ii) Good electrical conductivity

• (iii) Ductility

• (iv) High melting point

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The poorest conductor of heat among metals is

• iron

• Mercury

• Calcium

• Sodium

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Which one of the following metal reacts vigorously with oxygen and water?

• Sodium

• Potassium

• Calcium

• Magnesium

Metals react with acids to produce _____________.

• Oxygen

• Smoke

• Hydrogen

• Nitrogen

Which of the following metal exist in liquid state in room temperature?

• Mercury

• Bromine

• Aluminium

• Sodium