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i. Talk about the terms "short circuiting" and "turbulence" in settling tanks under the following headings - causes, effects and design improvements/remedial calculates taken to avoid them.
ii. Talk about the mechanism of coagulation in terms of the electrostatic and van der Waal's forces acting on the colloidal particles. Sketch diagrams to illustrate your answer.
iii. What is aeration used for in drinking water purification? Talk about some methods by which ventilation can be improved to increase gas transfer through the water.
The first use of quantum theory to explain the structure of atom was made by: (1) Heisenberg (2 )Bohr (3) Planck (4) Einstein Ans: Bohr
p block element
Experimental evidence for the existence of the atomic nucleus comes from: (1) Millikan's oil drop experiment (2) Atomic emission spectroscopy (3) The magnetic bending of
Aromatic compounds - Homocyclic or Carbocyclic These compounds contain at least one benzene ring, that is a six-membered carbocyclic ring occupying alternate single and double
Drugs or Medicines from plants 1. Bark of willow tree that consists of salicylic acid. It is employed to take relief from fever and pain. 2. Alkaloid Reserpine that is taken
Which of the following statements does not form part of Bohr's model of the hydrogen atom: (1) Energy of the electrons in the orbit is quantized (2) The electron in the orbi
Askccomparison between caulometry and electrogravimetry question #Minimum 100 words accepted#
Cavitation occurs when the pressure in localized regions reaches the vapor pressure. This can cause actually cause structural damage if vapor bubbles form and burst. Consider a sys
Time taken for an electron to complete one revolution in the Bohr orbit of hydrogen atom is: (1) 4 Π mr 2 / nh (2) nh/ 4Π 2 mr (3) nh/ 4Π 2 mr 2
Explain the Winnowing and Primary processing of wheat Winnowing: In this process, the impurities are separated on the principle that their density differs from that of the
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