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CBSE Class 10 Answered

what are the limitations of dobereiner's triad ?
Asked by Sureshyadav | 21 Oct, 2012, 08:56: PM
answered-by-expert Expert Answer
Two important limitations are:
 
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, nitrogen family does not obey the Law of Triads.
Answered by | 25 Oct, 2012, 10:02: AM

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