Periodic Table and Periodicity - Exam Prep Insights

Periodic Table and Periodicity - Case Studies

Q. What is the primary oxidation state of iron in iron(III) oxide?

Solution

In iron(III) oxide (Fe2O3), iron has an oxidation state of +3.

Correct Answer: C — +3

Q. What type of bond is formed between sodium and chlorine in sodium chloride?

Solution

Sodium chloride is formed by ionic bonding between sodium ions and chloride ions.

Correct Answer: B — Ionic

Q. Which metal is known for its ability to resist corrosion and is often used in jewelry?

Solution

Gold is highly resistant to corrosion and tarnishing, making it ideal for jewelry.

Correct Answer: C — Gold

Showing 1 to 3 of 3 (1 Pages)