Answer Posted / surya prakash

excitation of the electrons from outermost orbit to its
excited state by the absorption of energy '''''''and while
returning to its original; state .... the emmision
wavelenghts are recoreded for obtaining the graph'''''''
'
;'
'
excitation of rlectrons simply'''
in ir its alone and in nmr its in the presence of magnetic
field

Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?

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