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Crystalline sodium chloride is a bad con...

Crystalline sodium chloride is a bad conductor of electricity while molten NaCl and its aqueous solution conduct electricity. This is because

A

crystalline sodium chloride contains molecules only

B

the ions present in it are not free to move in solid state

C

sodium chloride is a covalent crystal

D

solid substrances do not conduct electricity.

Text Solution

Verified by Experts

The correct Answer is:
B
`Na^(+) and Cl^(-)` ions are free to move only in molten state or aqueous solution.
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