Question

The major draw back of the classification of Doberiener was ?



1, Elements with large difference in properties were included in the same group

2, The increasing order of atomic mass was not strictly followed

3, All elements could not be classified like this

4, No proper position could be given to the element hydrogen​

Answer 1

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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.

Answer 2

Answer:

option (3) correct!✔

Explanation:

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Dobereiner’s could not be classify most of the elements known at that time.

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• 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.

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:))