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Why metals are good conductors of heat ?...

Why metals are good conductors of heat ?

A

they contain large number of free electrons

B

their aloms are relatively apart

C

their atoms collide frequently

D

they have reflecting surface

Text Solution

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The correct Answer is:
A
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How will you show experimentally that metals are good conductors of heat?

State reasons for the following: (i) Metals are good conductors of heat. (ii) Addition of some silver to pure gold for making ornaments. (iii) Inability of non-metals for displacing hydrogen from dilute sulphuric acid.

Knowledge Check

  • Assertion : Handles of utensils should made up of metals like copper, steel or iron. Reason : Metals are good conductors of heat.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false and reason is true

  • Metals are good conductors of heat as compared to the insulators because

    A
    they contain free electrons
    B
    their atoms are relatively far apart.
    C
    their atoms collide frequently.
    D
    they have reflecting surfaces.

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    Metals are good conductors of heat. Explain why.

    Explain why metals are good conductors ob electricity.

    Give reasons why metals are good conductors, whereas non-metals are bad conductors of electricity.

    Give reasons why metals are good conductors , whereas nonmetals do not.

    Describe an activity to show that metals are good conductors of electricity.

    Two metals which are good conductors of heat.

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