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Q. Name the various steps required for making water suitable for domestic use.
Ans. Treatment process for domestic use
S. No.
Process use for treatment
Impurities removed
1.
screening
Floating materials like sand, clay etc.
2.
Sedimentation with coagulation
Fine suspended inorganic matter
3.
Filtration
Colloidal impurities and larger organisms
4.
Disinfection
Pathogenic bacteria
5.
sedimentation
Suspended impurities like sand, clay etc.
Give the name of the molecular shape of each of the following. (1 mark each) 1) silicon tetraiodide
Why is that Li is the only element in group 1A that reacts with dinitrogen to a nitride
Calculate the pH of 0.100 L of a buffer solution that is 0.22M in HF and 0.53M in NaF
Isomers, which vary in the rotation of the plane polarized light, are known as Optical Isomerism.
Uses of Dihydric Alcohols
Q. Show the Isolation of Important Transition Metals? Involved in the extraction of metals. Describe the extraction of important transition metals of the first transition serie
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uses of light waves in chemical areas
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List three factor that affect conductivity
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