Question

what was the defect with debereiner's trades​

Answer 1

Explanation:

Dobereiner could identify only three triads. He was not able to prepare triads of all the known elements. All the known elements could not be arranged in the form of triads. For very low mass or for very high mass elements, the law was not holding good.

Answer 2

Answer:

He could find only 3 triads from the elements know at that time

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