Periodic Table and Periodicity - Case Studies

Download Q&A
Q. What is the primary oxidation state of iron in iron(III) oxide?
  • A. +1
  • B. +2
  • C. +3
  • D. 0
Q. What type of bond is formed between sodium and chlorine in sodium chloride?
  • A. Covalent
  • B. Ionic
  • C. Metallic
  • D. Hydrogen
Q. Which metal is known for its ability to resist corrosion and is often used in jewelry?
  • A. Iron
  • B. Copper
  • C. Gold
  • D. Aluminum
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