Question

27. Write any two limitations of dobereiner’s classification
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Answer 1

Answer:

All known elements could not be classified into groups of triads on the basis of their properties. Not all groups obeyed the Law of Triads. For example, the Nitrogen family does not obey the Law of Triads.

Answer 2

Answer:

All the elements did not classified. and, It is applicable only upto 20 elements. mean atomic masses are approximate but not accurate. These are the limitations dobereiners classification.