The soul of chemistry is dealing with___________? April 15, 2025 by admin A. Internal structural changes in matter B. Composition of matter C. Properties of matter D. Composition and properties of matter
The radioactive isotope of hydrogen is called___________? April 15, 2025 by admin A. tritium B. deuterium C. protium D. ortho-hydrogenThe correct answer to the question: "The radioactive isotope…
Electron was discovered by? April 15, 2025 by admin A. Michael Faraday B. James Maxwell C. Yuri Gagarin D. J.J ThomsonThe correct answer to the question: "Electron was…
Sodium carbonate is produced by____________? April 15, 2025 by admin A. haber process B. Amonia solvay process C. decons process D. lead chamber processThe correct answer to the question: "Sodium…
Which of the following is a substance? April 15, 2025 by admin A. Sea water B. Brass C. Tape water D. Graphite E. Sand In chemistry, a substance refers to…
Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________? April 15, 2025 by admin A. ionic substances B. metallic substances C. molecular solids D. covalent network solids
All of the following substances are crystalline except_____________? April 15, 2025 by admin A. Ice B. Diamond C. Sucrose D. Plastic
Covalent network crystals have_____________? April 15, 2025 by admin A. higher melting point then molecular crystals B. lower melting point then molecular crystals C. discrete molecules linked by Van der waals forces D. hydrogen bonding
What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called? April 15, 2025 by admin A. Paint B. Glass C. Gun Powder D. Cement
Diameter of an atom is in the order of________________? April 15, 2025 by admin A. 0.2m B. 0.2mm C. 0.2nm D. 0.2pm
