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An analysis of the state of the Brazilian chemical industry in 1998 revealed that the actually used technologies were transferred in a period where industrial waste generation, tre
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Aromatic Nitro Compounds Aromatic nitro compounds are the derivatives of aromatic hydrocarbons where one or more hydrogen atom (s) of the benzene nucleus has been changed by ni
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Q. Extraction of Aluminium? Aluminium cannot be extirpated economically from the silicate minerals. Therefore bauxite is the most important ore for the extraction of alumimum,
Sources of antioxidants The primary biological role of antioxidant is in preventing the damage that reactive free radical can cause to cells and cellular compounds. In fact, al
Calculation of Number of Atoms per Unit Cell of HCP (n): One half of the each of the 2 base centre atoms (2x1/2), one six of the every of the 12 corner atoms (12x1/6) and all
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Ans) There is a formula for this i.e [ (n 2- n 1 +1)
2p orbitals have : (1) n=1, l=2 (2) n=1, l=0 (3) n=2 l=1 (4)n=2, l=0 Ans: n=2 l=1
it is impossibe to synthesise orgnic compounds in the lab since life force is essential for their formation -theory is known as
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