Question

what are limitations of dobereiner's triad rule? ​

Answer 1

He could not arrange the all known elements of that time in the form of triads .....

He predicted that no more elements would be discovered in future.....

Hope this will help

Answer 2

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refer to pics above

1. first pic of your avengers dued :)
2. second pic of your answer of doberenier traid..

limitations :: His law fail in the era of chemistry

he could find only three triads of total no. of elements and were more than that of those encompassed .

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