amorphous 2

Coal, Coke, Charcoal (or wood charcoal), Animal Charcoal (or bone black), Lamp black, Carbon black, Gas carbon and Petroleum coke. Diamonds and graphite are two crystalline allotropes of carbon. Diamond and graphite both are covalent crystals. But, they differ considerably in their prop..

Crystalline and Amorphous Solids - Solids have definite shape and volume because the average distance between the molecules or atoms remain constant and do not change with time. The arrangement of molecules inside a solid differ from one to another. This results in two types of ..

Mechanics of Solids and Fluids..

These carbohydrates liberate a large number of monosaccharide molecules on hydrolysis. They are usually amorphous, insoluble in water and tasteless and are called non-sugars. They are again sub-divided into two types. They are homopolysaccharides and heteropolysaccharide..

1. Calcium oxide is a white amorphous solid. 2. It is not decomposed further when heated, but produces a white brilliant light above 2732 o F. This light is called lime light. 3. It combines vigorously with water to form slaked lime (Calcium hydroxide). The process is called "Sl..

1. Boron is a non-metal whereas aluminium is a metal. 2. Boron is a bad conductor of electricity whereas aluminium is a good conductor. 3. Boron exists in two forms-crystalline and amorphous. Aluminium is a soft metal and does not exist in different forms. 4. The melt..

. In the free state, carbon exists in both crystalline and amorphous forms. In nature, the two crystalline forms that exist are diamond and graphite. The amorphous forms of carbon do not exist naturally. They are either man made, or produced from organic matter. A..

Besides being useful, chemicals find use in artifacts as well. Ceramics, paints, varnishes, glass, cement are various other useful substances that contain various chemicals as their components. Construction industry is the major beneficiary of such substances. Of late, continuing research has throw..

It is an amorphous white solid stable upto 250C. After this temperature it begins to evolve hydrogen gas. It is moderately stable in air or water but is rapidly hydrolyzed by acids giving H 2 . ..

. Secondary walls are seen in specialised cells such as sclerenchyma, collenchyma, xylem vessels and tracheids. fig. 16.1 - Layers of Cell Wall in T.S. and L.S. The term middle lamella is used for describing a thin sticky, amorphous layer of cementing material that is found between t..