🧪| Unit 5 | Electricity

Question 1

Define ‘electrolysis’

Answer 1

Electrolysis is the breakdown of an ionic compound in molten state or in aqueous solution by the passage of electricity.

Question 2

What is the negative electrode called?

Answer 2

Cathode

Question 3

What is the positive electrode called?

Answer 3

Anode

Question 4

At which electrode does reduction take place?

Answer 4

Reduction takes place at the cathode

Question 5

At which electrode does oxidation take place?

Answer 5

Oxidation takes place at the anode

Question 6

Metal reactivity series order

Answer 6

Potassium, Sodium, Calcium, Magnesium, Aluminium, Carbon, Zinc, Iron, Tin, Lead, Hydrogen, Copper, Silver, Gold, Platinum