Home
Class 12
CHEMISTRY
Molten NaCl is electrolyzed in a cell ca...

Molten `NaCl` is electrolyzed in a cell called

A

Downs cell

B

Castner cell

C

Kellner cell

D

Hall cell

Text Solution

Verified by Experts

The correct Answer is:
a., b,c., d.
In a Downs cell, molten `NaCl` is electrolyzed to give `Na` at cathode and `Cl_(2)(g)` at anode.
`b,c.,` A Castner Kellner cell is used for the preparation of caustic soda `(NaOH)`.
`NaOH` is prepared by the electrolysis of a saturated solution of `NaCl` using `Hg` as cathode and carbon rods as anode.
`d.` In a Hall cell `(` or Hall `-` Heroult cell `)`, aluminium `(Al)` is obtained from the electrolysis of molten `Al_(2)O_(3)(` alumina `)+` cryolite `(Na_(3)AlF_(6))+CaF_(2)+AlF_(3)`.
Promotional Banner

Similar Questions

Explore conceptually related problems

The potential of a single electrode in a half cell is called the

If an aqueous solution of NaF is electrolyzed between inert electrodes , the product obtained at anode is

A solution of sodium sulphate in water is electrolyzed using inert electrodes. The products at the cathode and anode are respectively

In the metallurgy of aluminium when the fused matrix is electrolyzed , the overall reduction reaction is :

Molten NaCl conducts electricity due to the presence of :

In case of poriferans, the spongocoel is lined with flagellated cells called

A solution of sodium salt of fatty acid was electrolyzed during Kolbe's reaction . The solution left after electrolysis is

A solution of CuSO_(4) is electrolyzed for 10 min with a current of 1.5A . What is the mass of Cu deposited at the cathode? [ Atomic mass of Cu=63g]