Mention any two criteria for rejection of Dobereiner's triad ?

1.	Mention any two criteria for rejection of Dobereiner's triad ?
Answer» Answer: Dobereiner could find only THREE TRIADS; . i.e total of 9 elements only. However the total NUMBER of elements were more than that of those ENCOMPASSED in Dobereiner's Triad. Thus, Dobereiner's could not be CLASSIFY most of the elements known at that time.

Answer»

Answer:

Dobereiner could find only THREE TRIADS; . i.e total of 9 elements only. However the total NUMBER of elements were more than that of those ENCOMPASSED in Dobereiner's Triad. Thus, Dobereiner's could not be CLASSIFY most of the elements known at that time.

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