Question

merits and demerits of werners theory

Answer 1

Werner praposed the theory based on all molecules and ions putting in the square brackets and their free ions are outside the bracket. He explained the bonding in coordination complexes based on his theory. he praposed to two different valencies for the complexes and those are primary and secondary valencies, where primary valency is satisfied by negatively charged ions and the secondary valencies are satisfied by electron donar groups. from this theory we can correctly predicts the oxidation state on the central metal ion and the conductivity of the inorganic complexes by titration method(refer the image below).

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