MYP3 testing theory METALS

Which element is the most reactive in the reactivity series?

• Silver

• Gold

• Potassium

• Copper

What is the order of reactivity for the following metals: Zinc, aluminum, iron, and lithium?

• Aluminum > zinc > iron > lithium

• Iron > zinc > aluminum > lithium

• Lithium > aluminum > zinc > iron

• These are all incorrect

What type of reaction is shown by this word equation?

lead nitrate + sodium → sodium nitrate + lead

• Decomposition

• Thermite

• Displacement

• Neutralisation

What is the product of the displacement reaction between iron (Fe) and copper sulfate (CuSO4) solution?

• Copper metal (Cu) and iron sulfate (FeSO4)

• Iron metal (Fe) and copper sulfate (CuSO4)

• Copper metal (Cu) and iron metal (Fe)

• Iron sulfate (FeSO4) and copper sulfate (CuSO4)

In a displacement reaction, it is the ____________ reactive metal that is displaced from a compound.

• Heaviest

• Least

• Most

• Worst

Which metal will displace copper metal (Cu) from copper sulfate (CuSO4) solution?

• Gold

• Lithium

• Silver

• None of these

Which is the correct reaction between copper (Cu) and sulfuric acid (H₂SO₄)?

Cu + H₂SO₄ -> .......................

• Cu + 2H₂SO₄ → CuSO₄ + SO₂ + 2H₂O

• 2Cu + H₂SO₄ → CuO + H₂SO₄

• Cu + H₂SO₄→ CuO+ SO₂ + H₂O

• Cu + H₂SO₄ → CuSO₄+ H₂SO₄

How can rust be prevented on iron objects?

• Painting the surface

• Applying oil to the surface

• Keeping the iron object dry

• All of the above

Which method/methods will NOT work to prevent rust?

• Submerge in water

• Soak metal in Hydrochloric acid (HCL) for a day

• Coat the metal with another metal

• Cover the metal in lemon juice

True or False:

Magnesium is more reactive than silver.

• True

• False