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What are the Defects of Triad Classification? |
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Answer» Defects of Triad Classification • A large number of similar elements could not be grouped into triads e.g., iron, manganese, nickel, cobalt, zinc and copper are similar elements but could not be placed in the triads. • It was possible that quite dissimilar elements could be grouped into triads. • Dobereiner could only classify 3 triads successfully (highlighted in the table). Since he failed to arrange the then known elements in the form of triads his attempt at classification was not very successful. |
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