Chemistry Quiz on Metals, Acids, and Electrolysis

Which metal is the most reactive according to the reactivity series?

• Platinum

• Potassium

• Calcium

• Gold

What is the product when a metal reacts with an acid?

• Salt and water

• Metal oxide

• Salt and hydrogen

• Metal hydroxide

Which of the following metals can be extracted by reduction with carbon?

• Sodium

• Iron

• Potassium

• Aluminium

What is the process called when a more reactive metal displaces a less reactive metal from its compound?

• Reduction

• Oxidation

• Displacement

• Neutralisation

What is the general reaction formula for a metal reacting with water?

• Metal + water → metal hydroxide + hydrogen

• Metal + water → salt + hydrogen

• Metal + water → salt + water

• Metal + water → metal oxide + hydrogen

Which of the following is a strong acid?

• NH₃

• H₂SO₄

• CH₃COOH

• NaOH

What is the pH range of a strong alkali?

• 7 to 10

• 0 to 14

• 7 to 14

• 0 to 7

What is produced at the cathode during the electrolysis of brine?

• O₂

• NaOH

• Cl₂

• H₂

Which ion is released by acids in solution?

• OH⁻

• H⁺

• Na⁺

• Cl⁻

What is the result of neutralisation between an acid and a base?

• Salt and hydrogen

• Salt and oxygen

• Water and carbon dioxide

• Salt and water