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Name the principal ore of tin or lead.
Describe the different steps (along with equationsfor the reactions) involved in the extraction of the metal from the ore named.
Name an important alloy of each, tin and lead.
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For the energy levels in an atom, which one of the following statements is correct: (1) There are seven principal electron energy levels (2) The second principal energy leve
Q. Write short note on units of hardness and their relationship. Sol. Units of hardness and their relationship. (1) Parts Per million (ppm): It is defined as t
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The uncertainty in momentum of an electron is 1 x 10 -5 kgm/ s . The uncertainity in its position will be( h= 6.63 x 10 -34 Js) : (1) 5.28 x 10 -30 m
WHAT IS THE FEROST DIAGRAM
find the equlant mass of 2M HCL?
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