Organic Chemistry

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: Required Accessories: One electric cell (battery), one electrical bulb, 2 electrical wire, steel spoon, piece of aluminum. Rubber, wood…

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 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) Required Accessories: Thick copper wire (20 cm), two pieces of cork, safety matches, candle or spirit lamp. Procedure:…

The polymers of amides are known as polyamides. They are fibrous substances. Commercially they are known as Nylon. Characteristically polyamides are very resistant to wear…

Detergent: Detergent or synthetic clearing agent is the sodium salt of long chained alkyl/aryl hydrogen sulphate or sulphonate or alkylated fenoxy/ ammonium compounds. The general…

Detergent is better than soap for the following reasons: (i) Soap does not work well in hard water since the Ca2+; Mg2+ ions of hard…

The Sodium (Na) and Potassium (K) -salts of higher fatty acids are known as “Soap”. The general formula of soap is R-COONa or R-COOK, (R…

Oil and fat together are called lipid. Oil and fat are the mixture of the esters of higher fatty acids and glycerol (chemically they are…