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Q. What is the use of Gallium? Gallium is mainly used in semiconductor technology. It is used for doping other semiconductor and in solid state devices such as transistors.
The chemical formula for pure water is H 2 O. Pure water breaks up into an equal number of H + (aq) and OH - (aq) ions. As the amounts of the H + and OH - ions are equal, water i
Which type of bond is formed between similar atoms: (1) Ionic (2) Covalent (3) Coordinate (4) Metallic Ans: Covalent
Effect of impurities on resistivity: A small percentage of impurities can result in substantial increase in resistivity i.e. decrease in the conductivity. Mathem
Explain and Define standard feat of formation Ans) The amount of heat liberated of absorbed when single mole of compound is formed in its standard state from its elements in the
WHAT IS ELECTRON DEFICIENCY COMPOUND
during the process of extraction of pure copper from copper pyrite,SiO2 acts as acidic flux which combines with iron oxide(FeO) to form iron silicate(FeSiO3). CuFeS2 + heat ---> Cu
anomalous behaviour of beryllium
The frequency of an electromagnetic radiation is 2x 10 6 Hz. . What is its wavelength in metres : (Velocity of light = 3x10 8 ms -1 ) (1)6.0x 10 14
What are ferrox cubes and ferrites? How are mixed ferrites prepared for industrial uses? Give an account of applications of ferrites pointing out their advantages over a ferromagne
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