Compare the basicities of pyrrole and pyridine.
Pyridine is more basic than pyrrole because lone pair of electrons on N in pyridine and pyrrole are different in nature. These form a part of aromatic sextet in pyrrole, while not __________ _______ ________ ____ ___ __________ ______ ______ _________ ________ _________.
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Why the 1st position of naphthalene is more reactive than 2nd position? Explain giving mechanism.
Describe the structure of hemoglobin along with a suitable diagram.
Arrange the following in decreasing order of C-O bond lengths giving justifications: Ni(CO)4, [Co(CO)4] - , [Fe(CO)4] 2- .
Explain the main bands appearing in the IR spectra of alkanes and alkenes. What are the differences in the IR spectra of these two classes of compounds?
With suitable diagrams explain the polarity of the free CO molecule as well as when it binds with a transition metal cation.
Explain the solvent effect on electronic spectra for n - transitions. In which solvents are they particularly seen?
Give a short account of the essential elements occurring in biological systems.