Formation of Colored Ions
Formation of Colored Ions: In an isolated atom or ion of a transitional element, all the five d- orbitals are of same energy (they are…
Chemistry
All Ores are Minerals but all Minerals aren’t Ores
Minerals and Ores Minerals: the naturally occurring metallic compounds found in earth’s crust which can be obtained by mining are called minerals. A mineral may…
Determine Melting Point of Solid
Determining the melting point of a solid compound is one way to test if the material is pure. A pure material usually has a melting…
Boiling Point of Water
Boiling point of Water The boiling point of water is 100°C or 212° F at 1 atmosphere of pressure (sea level). When you take some…
Lassaigne’s Test
Lassaigne’s Test: Nitrogen, Sulphur, and halogens are detected in any organic compound by Lassaigne’s test. It is a general test for the detection of halogens,…
Observing the Thermal Conductivity of Various Matters
Observing the thermal conductivity of various matters Required accessories: 1 glass-spoon, 1 plastic-spoon, 1 aluminum-spoon, 3 one taka coins, 1 beaker of 600 ml. 300…
Observation of Electrical Conductivity of Metal
Observation of Electrical Conductivity of Metal: Required Accessories: One electric cell (battery), one electrical bulb, 2 electrical wire, steel spoon, piece of aluminum. Rubber, wood…
Production of Urea
Urea: Chemically urea is the di-amine of carbonic acid or carbamide. Methods of synthesis: (i) From phosgene gas. (ii) Commercial process→ from natural gas Commercial production…
Property of Metal and Non Metal
Property of metal and non metal On the basis of various characteristics of density matter is divided into two types-metal and non-metal. Now we will…
Observe the Thermal Conductivity of Metal (Copper)
Observe the Thermal Conductivity of Metal (Copper) Required Accessories: Thick copper wire (20 cm), two pieces of cork, safety matches, candle or spirit lamp. Procedure:…
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