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A solid with high electrical and thermal...

A solid with high electrical and thermal conductivity from the following is

A

`Si`

B

`Li`

C

`NaCl`

D

`ICl`

Text Solution

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The correct Answer is:
2
Only metallic solids can have high electrical and thermal conductively .`Si` is a covalent solid ,`Li` is a metallic soilds.`NaCl` is an ionic solids whilst ice is a molecular solids.
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Knowledge Check

  • A solid with high electrical and thermal conductivity is

    A
    Si
    B
    Li
    C
    NaCl
    D
    Ice

  • Coefficient of thermal conductivity .

    A
    depends upon nature of the meterial of the body
    B
    is independent of dimensions of the body
    C
    both 1 and 2
    D
    depends on temperature difference

  • The thermal conductivity of a rod depends on

    A
    length
    B
    mass
    C
    area of cross section
    D
    material of the rod.

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