Phosphorus,White phosphorus,red phosphorus and black phosphorus

Phosphorus and white phosphorus structure

Phosphorus: Phosphorus is the second member of group VA. It’s name phosphorus is a greek word which means light bearing. Phosphorus is not found in free state. The important minerals are: Phosphate rock or phosphate, Ca3(PO4)2. Fluorapatite Ca5F(PO4)3…

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Silicate|Sodium silicate|Aluminum Silicate- chemistry funda


Silicate: The salts of silicic acids (  H4SiO4 ) are known as silicate. OR The compounds derived from silicic acids are call-ed silicate. Example: Na2, SiO3. 1- Sodium silicate , Na2SiO3: It is sodium Salt of meta Silicic…

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Noble Gases-Uses and noble gases properties|chemistry funda


Noble Gases: Helium(He), Neon(Ne),Argon(Ar),Krypton (kr), Xenon (Xe) and Radon (Rn) are Noble Gases. They also called as Rare gases. They are members of group VIII A or zero group.The noble gases are present in atmosphere in small amount…

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Borax, Properties and Borax Uses|Chemistry funda


Borax: Borax is the sodium salt of tetraboric acid. It is also called Tincal. Its chemical name is sodium tetraborate decaHydrate. It is found in Tibet and California’s dry lake region. The common name of borax is Suhaga. Preparation of Borax: Borax is prepare by reaction of…

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Preparation of Sodium by Down’s cell and Nelson cell|chemistry funda


Preparation of Sodium: We know that sodium (sodium preparation) is a chemical element and atomic number of sodium is 11 with NA symbol  . Its belong to group Number 1 because it has a single electron in outermost shell. It can readily donate electron from outer shell. It is highly reactive ,…

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Refractive index and Measurement of refractive index|chemistry funda


Refractive index: Refractive index is defined as the measure of the bending of light when passes from one medium to another. Refractive index is equal to the velocity of light c divided by its velocity v in substance…

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Chromatography and classification of chromatographic methods?


Chromatography: Chromatography is a analytical technique that is widely used for separation, Isolation and identification compounds. Such as organic matter such as amino acids, starch, pigments for vitamins and plants, etc. This technique was introduce by M. Tswett. M. Twett was russian botanist. In 1906 he introduced this technique. He employed chromatrographic…

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Solvent extraction Principle and factors affecting on it?|chemistry funda


Solvent Extraction: Solvent Extraction is a separation method in which a solution (usually aqueous) comes into contact with a second solvent (usually organic) that is immiscible with the first to pass the solvent into the second solvent. This…

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Spectroscopy,importance and types of spectroscopy|chemistry funda

what is spectroscopy and its spectroscopy-representation

Spectroscopy: Spectroscopy involves the interaction of electromagnetic radiation with matter. OR The branch of chemistry that has been produced that is concerned with investigating and measuring spectra.When matter interacts with or emits electromagnetic radiation. Radiation: Here, Radiation is defined broadly to include charged particles such as alpha α and beta β radiation. OR…

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Conductometry and application of conductometry|chemistry funda


Conductometry: Conductometry is define as the calculation of electrical conductivity of a solution. Conductance The current flow through the conductor is called conductance.In others words it is defined as the reciprocal of the resistance. The unit for the…

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