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Break point chlorination: It may be defined as the chlorination of water to such an extent that not only living organism but also other organic impurities in water are destroyed. When chlorine is added to water, it is used for different reactions like oxidation of oxidizable substance, chlorination of organic substance, destructive oxidation of organic substances and disinfection of pathogens. Initially all the chlorine added is consumed and there is no free chlorine. This is due to complete oxidation of oxidizable substances. As the applied chlorine increases, there is steady increase in amount of residual chlorine. This stage corresponds to formation of chloro-organic compounds and chloramines when the dose of chlorine increase, destruction of chloro organic and chloramines takes place. Addition of chlorine in such dosages is known as break point or free residual chlorination. The breakpoint chlorination ensures complete destruction of organic compounds, which give colour, unpleasant odour and bad taste. In addition to it a complete destruction of disease producing micro-organisms is also ensured.
isomophosis
Mustard Although the primary use of mustard seeds is a condiments, important new food applications are regularly being found. Commercially available mustard products include m
Wavelength associated with electron motion: (1) Increases with increase in speed of electron (2)Remains same irrespective of speed of electron (3) Decreases with increa
The number of appositively charged ions surrounded a certain ion in an ionic crystal lattice is known as co- ordination number.
How urea is considered as organic molecule. Becuase it does not contain C-H or C-C bonds
Most of the transition metal do not displace hydrogen from dilut acid. why? Ans) The activity series of transition metals is less than that of hydrogen so they can not displace h
cis-2-butene is a symmetrical alkene Because cis-2-butene is a symmetrical alkene, it reacts to give the similar product in either oxymercuration- reduction or hydroboration-ox
How many electron have br+ Neutral Br, being in Group 7A, has 7 valence electrons; therefore, Br+ has 6.
WHY WE CALCULATE GERM OIL ACIDITY OF WHEAT FLOUR?
For n= 3 energy level, the number of possible orbitals (all kinds) are: (1) 1 (2) 3 (3) 4 (4) 9 Ans: 9
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