Metals revision

• Chemistry
• Lower Secondary (Key Stage 3)

Metals revision

What do metals form when reacting with oxygen?

1. Salt
2. Hydrogen gas
3. Metal oxides
4. Metal hydroxides

Which metal reacts with oxygen to form rust?

1. Copper
2. Lead
3. Iron
4. Gold

What is the word equation for magnesium burning?

1. Magnesium + Carbon → Magnesium carbide
2. Magnesium + Oxygen → Magnesium oxide
3. Magnesium + Chlorine → Magnesium chloride
4. Magnesium + Water → Magnesium hydroxide

What gas is produced when metals react with acid?

1. Nitrogen gas
2. Hydrogen gas
3. Oxygen gas
4. Carbon dioxide

What is the word equation for zinc and hydrochloric acid?

1. Zinc + Acetic acid → Zinc acetate + Carbon dioxide
2. Zinc + Hydrochloric acid → Zinc chloride + Hydrogen
3. Zinc + Water → Zinc oxide + Hydrogen
4. Zinc + Sulfuric acid → Zinc sulfate + Oxygen

Which metal reacts vigorously with acids?

1. Copper
2. Lead
3. Sodium
4. Gold

What is formed when magnesium reacts with acid?

1. Magnesium chloride + Oxygen
2. Magnesium oxide + Water
3. Magnesium salt + Hydrogen gas
4. Magnesium carbonate + Carbon dioxide

Which acid commonly reacts with metals?

1. Citric acid
2. Hydrochloric acid
3. Acetic acid
4. Phosphoric acid

Which in the diagram metal is most reactive?

1. Magnesium
2. Calcium
3. Copper
4. Silver

From the image which is the least reactive metal?

1. Silver
2. Calcium
3. Iron
4. Magnesium

Which element reacts with water vigorously?

1. Copper
2. Iron
3. Calcium
4. Lead

Which metal can displace zinc?

1. Copper
2. Gold
3. Iron
4. Aluminum

What is the order of reactivity?

1. Iron, Zinc, Lead
2. Potassium, Sodium, Calcium
3. Gold, Silver, Copper
4. Bismuth, Tin, Mercury

Which metal is the most reactive?

1. Gold
2. Potassium
3. Silver
4. Copper

What is the least reactive metal?

1. Sodium
2. Magnesium
3. Calcium
4. Gold

What is produced when sodium reacts with water?

1. Sodium hydroxide
2. Hydrogen gas
3. Sodium chloride
4. Oxygen gas

Which metal does not react with water?

1. Sodium
2. Calcium
3. Gold
4. Potassium

What happens to lithium in water?

1. Floats and reacts slowly
2. Explodes instantly
3. Changes color
4. Sinks quickly

Which gas is released when metals react with water?

1. Oxygen
2. Nitrogen
3. Hydrogen
4. Helium

What is the reaction of magnesium with water?

1. No reaction
2. Forms magnesium oxide
3. Immediate explosion
4. Slow reaction at high temperatures

What is a displacement reaction?

1. A reaction that requires heat
2. A reaction where one element replaces another
3. A reaction that involves only synthesis
4. A reaction that produces gas only

Which of these is a displacement reaction?

1. Zn + CuSO4 → ZnSO4 + Cu
2. CaCO3 → CaO + CO2
3. 2H2 + O2 → 2H2O
4. Na + Cl2 → 2NaCl

What usually drives a displacement reaction?

1. Reactivity of the elements involved
2. Volume of reactants
3. Temperature alone
4. Pressure changes

In a displacement reaction, what happens?

1. Elements combine to form a compound
2. All reactants are gases
3. No energy change occurs
4. More reactive element displaces less reactive

What can be a common product of displacement?

1. No products formed
2. Only gases
3. A new compound and an element
4. Only solids

Describe what is meant by the term displacement reaction.

Write the word equation for the displacement reaction for sodium with copper chloride.

State why gold will not displace iron from iron oxide.

Describe the reactions of metals.