AOS1: Chapter 3 Metal Reactivity

When panel beaters work on a car's surface they are making use of the metal's

• Ductility

• Malleability

• High tensile strength

• High reflectivity

Incandescent light globes worked by passing a current through a tungsten wire at temperatures that would make the metal glow white hot. Which three properties of metals are used here?

• 
  Lustre, electrical conductivity and thermal conductivity

• Malleability, high melting temperature and thermal conductivity

• Ductility, electrical conductivity and high melting temperature

• Lustre, ductility and high tensile strength

Electrical conductivity in solid metals can be explained by

• 
  a combination of magnetism and movement within the metallic lattice.

• 
  vibration of electrons around the central nucleus causing an electric current.

• movement of delocalised electrons when an electric field is applied.

• movement of the metal cations when an electric field is applied.

Which of the following metals would be expected to react most vigorously with an acid solution?

• Copper

• Calcium

• Aluminium

• Magnesium

An experiment was carried out with metals M, Q and R. The following results were obtained.

Based on the observations, it can be inferred that:

• metal M is more reactive than Q but less reactive than R.

• 
  metal Q is more reactive than M but less reactive than R.

• 
  metal R is the least reactive metal of the three.

• 
  metal Q is the least reactive metal of the three.

Which of the following is arranged according to increasing reactivity?

• Al > Ca > Na > K

• Al > Na > Ca> K

• Na > Ca> Al > K

• K > Al > Na > Ca

Name the products of the reaction of zinc and sulfuric acid.

• Zinc sulfate and oxygen gas

• Zinc chloride and oxygen gas

• Zinc sulfate and hydrogen gas

• Zinc chloride and hydrogen gas

Complete the following equation:

4Fe(s) + 3O₂(g) -->

• 
  4Fe₃O₂

• 4Fe₂O₃

• 2Fe₂O₃

• 2FeO

As we move across a period from left to right, what happens to the reactivity of metals with oxygen?

• Increases

• Decreases

• Stays the same

• Increases then decreases

Compared with transition metals, group 1 and 2 metals are more likely to:

• React vigorously with water or acids

• Form coloured compounds

• Have higher melting temperatures

• Be better conductors of electricity