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if the electon in hydrogen atom is exited to n=5 the number of diffrent frequency of radiations which may be exited is
why LiF and CsI are solibile in water but LiI and CsF are less solibility in water
How many types of colloidal system? and which are they?
why a small amount of an acid is added while preparing solution of potassium dichromate?
The wavelength of a spectral line for an electronic transition is inversely related to: (1) The number of electrons undergoing the transition (2) The nuclear charge of the a
What is heat atomisatin? Solution : Heat of atomisation or enthalpy of atomisation is the energy required to dissociate one mole of a given substance into atoms.
applications of radioactivity
How many unpaired electrons are present in Ni 2+ cation (atomic number = 28): (1) 0 (2) 2 (3) 4 (4) 6 Ans: 2
general principal for extraction of metals
Nitration or Direct method The number of - NO 2 groups introduced in benzene nucleus relies upon the nature and concentration of the nitrating agent, temperature of nitration
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