Chemistry-4 (Elements From The Sea)

Question 1

Reaction at anode

Answer 1

Formed at the anode
Concentrated halide -> halogen
Dilute halide-> oxygen
No halide-> oxygen

Question 2

Reaction at cathode

Answer 2

Formed at the cathode
Less reactive than H (silver,copper)-> metal formed
Group 1 and 2 + Al-> hydrogen gas

Question 3

What is formed at the electrodes from standard electrolysis of brine?

Answer 3

Cathode- H2

Anode- Cl2