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How many unpaired electrons are present in Ni 2+ cation (atomic number = 28): (1) 0 (2) 2 (3) 4 (4) 6 Ans: 2
Question Table 1 shows the specific rate of breakage S j and the values of the breakage distribution function b(i,j) of a mineral ore in a ball mill. Table 2 shows the size di
Q. Describe Electron Configurations and Orbital Diagrams? Ans. Remember that the atomic number of an atom tells us the number of protons and electrons in the neutral atom. To a
In a potassium atom, electronic energy levels are in the following order: (1) 4s>3d (2) 4s>4p (3) 4s (4) 4s Ans: 4s
Q. Chemical Properties of f-block element? The lanthanides are silvery-white, highly electropositive and reactive metals. They all react slowly with cold water and quickly on h
examples of antifertility drugs
what is indicators
how we can mix solids by usig silica gel?
Born Haber cycle with example as sodium chloride
Q. Explain about Preparation of diborane? Diborane can be prepared in almost quantitative yields by the reduction of boron Tricloride etherate (BF 3 , 0Et 2 ) with lithium alum
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