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Determine the term - Photolithography
As used in manufacture of I.C.S, it is the process of transferring geometrical shapes on a mask to surface of a silicon wafer. Photomask is prepared first.
perkin ring clousre reaction
what are the demerits of Bohr''s atomic model?
In the cases that we carried out in lectures we assumed that, in scaling up: If the TIP Speed was constant then (Note: Because D a and D t are constructed at a fixed ratio we
why was hydrochloric acid added?
Laws of mass action were proposed by Gulberg and Waage. The rate of chemical reaction is directly proportional to the product of the active masses of the reactants (molar concentra
Chemical Properties of Aromatic Nitro Compounds Resonance in nitrobenzene pass on a partial double bond character to the bond among carbon of benzene nucleus and nitrogen of th
When the azimuthal quantum number has a value of l=0 , the shape of the orbital is: (1) Rectangular (2)Spherical (3)Dumbbell (4)Unsymmetrical Ans: Spherical
Aluminium metal is frequently used as a reducing agent for the extraction of metals such as Chromium, Manganese etc. Explain why? Ans) The free energy change for the formation o
Q. Why we use Boron? Boron is used to increase the hardness of steels. Crystalline boron is used in transistors. Boron is a good neutron absorber and is used as shields and con
the nitride ion in lithium nitride is composed of 7 protons + 10 electrons. how?
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