C6

Question 1

What is the positive electrode called

Answer 1

Anode

Question 2

What is the negative electrode called

Answer 2

Cathode

Question 3

Explain briefly what is electrolyisis

Answer 3

During electrolysis, positively charged ions move to the cathode. At the same time the negative ions move towards the anode, as opposite charges attract.

Question 4

Half equation for water

Answer 4

H20 reversable ——-> H+ + OH-

Question 5

Recall the order of discharge at the anode

Answer 5

Halide > hydroxide > all other ngatively charged ions

Question 6

What is the liquid called which is being used in electrolysis (scientific terms)

Answer 6

Electrolyte

Question 7

What is the half equation in the cathode for hydrogen

Answer 7

2H+ (aq) +2e- —> H2

Question 8

why cant ionic solids cant be electrolysed

Answer 8

because the ions are in a fixed shape so they cant move

Question 9

what happens to positive metals ions during electrolysis

Answer 9

gets reduced

Question 10

what happens to the non metal ions during electrolysis

Answer 10

gets oxidised

Question 11

what do metals form in electrolysis

Answer 11

positive ions

Question 12

what do non metals form in electrolysis

Answer 12

negative ions