classification of matter of a gold

Three important gold fields are identified in the country Kolar Gold Fields and Hutti Gold Mines (both in Karnataka) and Ramagiri Gold Fields (in Andhra Pradesh) are the important gold reserves of our country. It is estimated that 178 lakh tons of ..

Introduction - Today the fact that all matter is made up of atoms is universally accepted. Realisation of the atomic constituents of matter began in 1828 when Scottish botanist Robert Brown observed a random ceaseless motion of pollen grains suspended in a liquid. Many macroscop..

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It is the number of milligrams of the protective colloid which just prevent coagulation of 10ml of standard gold sol when 1 ml of 10% solution of sodium chloride is added to it. Different lyophilic sols have different gold numbers. Smaller the gold number of the prote..

The gold leaf electroscope is a more sensitive instrument. It consists of a draught proof metal case with glass sides housing the gold leaves. The gold leaves 'L' and 'M' are attached at one end of a vertical metal stem S. At the top the stem has a metal place 'C'. Th..

Detection of charge - To detect a charge on a rod 'A' or 'B' bring the rod near to the metallic disc or cap of the electroscope. In either case the leaf diverges as shown in the diagra..

To detect a charge on a rod 'A' or 'B' bring the rod near to the metallic disc or cap of the electroscope. In either case the leaf diverges as shown in the diagra..

All around us are substances that are made of matter. Matter has mass and occupies some space. Different kinds of substances are made up of different matter. Matter can be thus classified in many ways. Two basic classifications of matter a..

Matter can be classified into different categories depending upon their physical or chemical natur..

Interaction between Colloids-Gold Number - It is known that lyophobic sols are unstable. They are however stabilized by adding stabilizers. When two lyophobic sols are mixed together, they may coagulate by mutual neutralization of electric charges or by destroying each others stabilizers...