Grade 12 – Structure of Atom – Key Concepts in Chemistry
1. Question: Explain the Bohr’s atomic model and its limitations. Answer: The Bohr’s atomic model proposed that electrons revolve around …
Read MoreGrade 12 – Some Basic Concepts of Chemistry – Key Concepts in Chemistry
1. What is the difference between matter and substance? Explain with examples and reference to the principles of chemistry. Answer: …
Read MoreGrade 12 – Chemistry in Everyday Life – Key Concepts in Chemistry
1. How do antacids work to relieve acidity in the stomach? Provide an elaborate explanation with reference to the principles …
Read MoreGrade 12 – Polymers – Key Concepts in Chemistry
1. What is the mechanism of polymerization and how does it affect the properties of polymers? Answer: Polymerization is the …
Read MoreGrade 12 – Biomolecules – Key Concepts in Chemistry
1. Question: Describe the structure and function of DNA in detail, including the role of base pairing and complementary strands. …
Read MoreGrade 12 – Amines – Key Concepts in Chemistry
1. What are the different methods of preparation of amines? Explain each method in detail, providing relevant examples and chemical …
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