Class 12 Chemistry | Fun Learning Quest for Kids

You are analysing a sample of pure silicon for a semiconductor project. Which type of solid is it, and what is the dominant bonding force?

In a crystalline solid, you find that the positions of some ions are missing, creating vacancies. This defect is most likely to affect which property of your material?

You are preparing a sports drink with a specific sugar concentration. If you dissolve 34.2 g of sucrose (C₁₂H₂₂O₁₁) in water to make 500 mL of solution at 300 K, what is its osmotic pressure? (R = 0.0821 L atm mol⁻¹ K⁻¹, molar mass of sucrose = 342 g/mol)