When current is passed through molten NaCl i.e. sodium chloride, it decomposes into sodium and chlorine gas. Both sodium and chlorine gas move towards the electrode opposite to their own charge and either loses an electron or gains one.
Can molten NaCl conduct electricity?
For example, solid sodium chloride (NaCl, or table salt) does not conduct electricity; it is an insulator. … Molten salts conduct electricity the same way they do when they are dissolved in water; some of the salt molecules are dissociated into ions, which allows the ions to conduct electricity.
Why does Molten sodium chloride decomposes on the passage of electric current?
This is a thermal decomposition reaction beacuse here NaCl is broken down into Na and Cl due to electricity. In combination reaction, two or more compound is added to form a single complex compound. This is a combination or addition reaction because here Na and Cl is added to form single compound NaCl.
Why is molten NaCl a good conductor of electricity?
As the motility of individual atoms or molecules in liquid state is far greater than solid, the ions (Na+&Cl−) are free to move and therefore can act as charge carriers. Hence molten sodium chloride is a good conductor of electricity because of free ions.
What happens to NaCl when heated?
When NaCl is heated, it gets hot then, at 801°C it melts and at 1413°C , it boils and when it is molten, It can conduct Electricity.
Why is NaCl a poor conductor of electricity?
Solid [NaCl] is a bad conductor of electricity because the charged particles (ions) in solid [NaCl] are not capable of moving as they are bound by strong electrostatic forces. As a result, they can not conduct electricity. … As a result, they can not conduct electricity.
When electricity is passed through molten NaCl Na metal is collected at?
When an electric current is passed through concentrated sodium chloride solution, hydrogen gas forms at the negative electrode , chlorine gas forms at the positive electrode, and a solution of sodium hydroxide also forms. You might have expected sodium metal to be deposited at the negative electrode.
When electric current is passed through molten common salt sodium metal is deposited at?
Sodium is deposited at the positive electrode and chlorine is deposited at the negative electrode.
Is electric current pass through NaCl solution valid?
When an electric current is passed through an aqueous solution of sodium chloride, sodium ions move towards cathode and chloride ions move towards anode.
Is NaCl good conductor of heat or electricity?
For the ‘conduction of electricity’, the element or compound must have free moving electrons or ions. NaCl is a “good conductor of electricity” in molten state but not is solid state.
Why does molten NaCl undergo electrolysis while solid NaCl does not?
Electrolysis involves the movement of ions to the electrode. Solid-state does not allow the movement of ions and unsuitable for electrolysis. When melted at high temperature, sodium chloride separates into sodium and chloride ions, so that, electrolysis can take place to form sodium atom and chlorine gas.
Why can molten sodium fluoride conduct electricity?
Solid ionic compounds do not conduct electricity because the ions are held firmly in place. The ions cannot move to conduct the electric current . But when an ionic compound melts, the charged ions are free to move. Therefore, molten ionic compounds do conduct electricity.