Differentiate between based on the information given in the brackets
Electrolysis (10)Differentiate between the following pairs based on the information given in the brackets.
- Conductor and electrolyte (conducting particles)
- Cations and anions (formation from an atom)
- Acid and Alkali (formation of type of ions)
Answer
(i) Conductor - conduction due to electrons; Electrolyte - conduction due to ions.
(ii) Cations are formed by the loss of electrons from an atom / or oxidation of an atom / donating electrons
Anions are formed by the gain of electrons by an atom / reduction of an atom/ accepting electrons
(iii) Acid - forms H+ ions or hydronium (ions in solution) or H3O+ or hydrogen ions
Alkali - forms hydroxyl (ion) or OH- (in solution) or hydroxide ion/hydroxide
- Exam Year: 2020