Sodium chloride has a crystalline structure made up of $$N{a^ + }$$ and $$C{l^ - }$$ ions. Why does $$NaCl$$ not conduct electricity in solid state?
A.
The ions of $$NaCl$$ become mobile only in molten state and are not free to move in solid state.
B.
The crystalline structure does not have ions.
C.
When a bond is formed between ions they lose their charges.
D.
None of these.
Answer :
The ions of $$NaCl$$ become mobile only in molten state and are not free to move in solid state.
Solution :
Due to electrostatic force of attraction, the ions do not move when electric current is applied in solid state. The ions become mobile when melted or dissolved in a polar solvent and conduct electricity.
Releted MCQ Question on Inorganic Chemistry >> Chemical Bonding and Molecular Structure
Releted Question 1
The compound which contains both ionic and covalent bonds is