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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.
What are liquid crystals? Give examples. Liquid crystals are an intermediate state among liquid state and solid state. They exhibit some characteristic properties of both soli
why are orbitals occupied singly first befor the pairing of electron occurs
According to Heisenberg's uncertainty principle, the product of uncertainties in position and velocities for an electron of mass 9.1x 10 -31 kg is: (1) 2.8x 10 -3 m 2 -s -1
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Q. Determine the acid insoluble ash in the sample of flour? After undertaking this activity, you will be able to: • assess the mineral content in the given sample of flour,
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