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a) Describe why not all of the organic matter in wastewater is converted to carbon dioxide and water in biological treatment.
b) What is the importance of the BOD in the characterization of wastewater?
c) Why are samples incubated at 20°C in the dark for 5 days in the BOD test?
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
Q. Explain about Smelting process? The roasted ore, which is generally an oxide, is strongly heated with a suitable reducing agent as result of which the metal is acquired in a
Ethanol or Ethyl alcohol This is obtained by the fermentation of Molasses in the presence of enzymes as catalyst. C12H22O11+H2O→C6H12O6 + C6H12O6 (sugar)
What are distinguishing characteristics of metallic bonding? Metallic state can be visualized like an array of positive ions, with a common pool of electrons to
Hydrolysis of an ester into acid and alcohol can be done by acid or alkali. which is the best method and why?
what is electronic configuration
How many grams of silica gel and plaster of paris and volume of water is needed to have a preparative TLC?
Q. Define shelf life? Shelf life is the time between the production and packaging of the product and the point at which it becomes unacceptable under defined environmental cond
What is the structure of a DNA molecule? Ans) The DNA molecule having of two complementary strands oriented in an anti-parallel fashion. Every strand is composed of nucleotides.
What wieght of CO is required to form re2(CO)10 from 2.5 gm of re2(O)7
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