Chemistry

Some Important Metals and their Ores

Metals are not available naturally in the form that we use. They are extracted from their ores. Metals and their ores are shown in the table below: S.No Metal Ores 1 Sodium(Na) Chile saltpetreTronaBoraxCommon salt 2 Aluminium(Al) BauxiteCorundumFeldsparCryoliteAluniteKaolin 3 Potassium(K) Nitrate(saltpetre)Carnalite 4 Magnesium(Mg) MagnesiteDolomiteEpsom saltKieseriteCarnalite 5 Calcium(Ca) DolomiteCalciteGypsumFluorsparAsbestos 6 Strontium(Sr) StrontianiteSilestone 7 Copper(Cu) CupriteCopper glanceCopper …

Some important Chemical Compounds, their Chemical Formulas, and Uses

1. Calcium Carbonate  Formula: CaCO3 Uses: Non-prescription drug for relief from acid indigestion and heartburn. It is also considered as a calcium supplement. 2. Sodium Chloride Formula: NaCl Uses: Used to season food (during food preparation and at the table), also used in the past as a method of food preservation. 3. Methane Formula: CH4 Uses: natural gas, fuel (also called …

Chemistry Quiz Questions

Which of the following is an element? (A) Diamond (B) Emerald (C) Sapphire (D) Ruby Answer: A (Graphite and Diamond are allotropes of Carbon) The catalyst used in the production of ammonia by the Haber’s process is (A) Platinum (B) Molybdenum (C) Iron (D) Nickel Answer: B Which of the following is to be found …

Syllabus of AS Level Chemistry 2023-2025 (IPC 5)

Physical chemistry Atomic structure Atoms, molecules and stoichiometry Chemical bonding States of matter Chemical energetics Electrochemistry Equilibria Reaction kinetics Inorganic chemistry 9. The Periodic Table: chemical periodicity 10. Group 2 11. Group 17 12. Nitrogen and sulfur Organic chemistry 13. An introduction to AS Level organic chemistry 14. Hydrocarbons 15. Halogen compounds 16. Hydroxy compounds …

Chemical Reactions Review (IP3/IPC3)

•When substances change their properties such as change of state, solubility, shape, or form, these changes are called physical changes. •When a new substance is formed with different compounds and properties, this change is called a chemical change. •And, the reaction that makes this change is called a chemical reaction. Physical changes Chemical changes No …

Review Chemistry IPC4/IPC6 (Grade 11/Grade 12)

Hydrocarbons• Carbon atoms bond to each other by single, double, and triple bonds. • Saturated hydrocarbons contain only single bonds. • Unsaturated hydrocarbons contain at least one double or triple bond. Refining Hydrocarbons• Fractional distillation involves boiling petroleum and collecting each group of components as they condense at different temperatures. • Fractional distillation towers do …