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explain why Cu2+ ion is not stable in aqueous solution?
Bond energy of covalent O-H bond in water is: (1) Greater than bond energy of H bond (2) Equal to bond energy of H bond (3) Less than bond energy of H bond (4) None o
The electronic configuration (outermost) of Mn +2 ion (atomic number of Mn= 25 ) in its ground state is: (1) 3d 5 , 4s o (2) 3d 4 , 4s 1 (3
The energy of electron in hydrogen atom in its grounds state is -13.6 eV. The energy of the level corresponding to the quantum number equal to 5 is: (1) -0.54 eV (2)
Illustrate the term Rolling with diagram A pair of cylindrical rollers made of iron or steel rotate in opposite direction with a gap between them which is smaller than cros
Question: (i) Explain the concept of Environmental Impact Assessment (EIA) and state its main objectives. (ii) List 3 activities (from the marine sector) which require an
what is the working principle of polarography
An aqueous solution has a hydroxyl concentration of 1.75 x 10^-7mol/L. Find the concentration of hydrogen ions in this solution.
defining titration,Redox Titrations
387 J/Kg. C or 0.0924 Cal/g.C
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