Q.

Iron which resembles Cobalt and Nickel in properties has been placed far away from these elements. This was one of the limitations of :

A. Modern periodic table
B. Newland's law of octaves
C. Dobereiner's triads
D. Mendeleev's periodic table
Answer» B. Newland's law of octaves
Explanation: Among the major limitations of Newlands Law of Octaves, some similar elements have been separated from one another while some dissimilar elements have been placed in the same column.
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