Reactivity Series and Displacement Reactions

This video tutorial explains the reactivity series, a ranking of metals by chemical reactivity, and its application in predicting chemical reactions. It introduces displacement reactions, where a more reactive element displaces a less reactive one from a compound, using zinc and copper as examples. The video also discusses the historical context of metal discovery and the smelting process, highlighting the role of carbon. Finally, it emphasizes the importance of understanding the reactivity series for predicting chemical changes.

What is the purpose of including carbon in the reactivity series?

• To compare its reactivity with metals

• To make the series longer

• To exclude non-metals

• To simplify chemical equations

In a displacement reaction, what happens when zinc is mixed with copper oxide?

• Copper displaces zinc

• No reaction occurs

• Zinc displaces copper

• Zinc and copper form an alloy

Why can't copper displace zinc from zinc oxide?

• Copper is more reactive than zinc

• Copper and zinc have the same reactivity

• Copper forms a different compound

• Copper is less reactive than zinc

What is observed when iron powder is added to copper sulfate solution?

• A white precipitate forms

• A blue solution forms

• A red powder forms

• No change occurs

What is the result of a successful displacement reaction?

• The more reactive metal is displaced

• The less reactive metal is displaced

• Both metals form a new compound

• No reaction occurs

What is the role of carbon in the smelting process?

• To increase the temperature

• To prevent oxidation

• To displace low reactivity metals

• To add color to the metals

Why were metals less reactive than carbon discovered earlier?

• They were used in ancient tools

• They are easier to isolate using carbon

• They are more abundant

• They have unique properties

Which of the following metals can be displaced by carbon?

• Copper

• Iron

• Gold

• Aluminum

What is the main takeaway regarding the reactivity series?

• It is outdated and not used

• It is only useful for non-metals

• Use it to predict chemical reactions

• Memorize the list of metals

What is the significance of the reactivity series in chemical reactions?

• It is used to balance equations

• It helps in predicting reaction outcomes

• It determines the color of compounds

• It is only relevant for laboratory experiments