Electron Transfer Reactions Quiz

What is the process called when a substance loses electrons?

• Reduction

• Precipitation

• Oxidation

• Neutralization

Why are electron transfer reactions important in technology?

• They create sound

• They are used in food preservation

• They are the basis of batteries

• They produce light

In the copper and silver nitrate reaction, what change is observed in the solution?

• It becomes green

• It turns red

• It turns blue

• It becomes colorless

What happens to zinc metal when placed in copper sulfate solution?

• It dissolves completely

• It turns into gold

• It forms a blackened copper deposit

• It remains unchanged

What is a metal displacement reaction?

• A reaction between a metal and a non-metal

• A reaction between two metal ions

• A reaction between a solid metal and a metal ion in solution

• A reaction between two solid metals

What does the Activity series of metals help us understand?

• The density of metals

• The color of metals

• The reactivity of metals

• The melting point of metals

Which metal will displace another in a solution according to the Activity series?

• No displacement occurs in solutions

• Metals of the same activity will displace each other

• A more active metal will displace a less active metal

• A less active metal will displace a more active metal

What happens when silver metal is placed in a copper solution?

• The silver dissolves

• A reaction occurs

• No reaction occurs

• The solution turns red

In the reaction between iron and copper ions, what is formed?

• Copper oxide and iron metal

• Iron metal and copper ions

• Copper metal and iron ions

• Iron oxide and copper metal

What is the underlying process that allows metal displacement reactions to occur?

• Precipitation

• Oxidation and reduction

• Evaporation

• Condensation