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Periodic Classification of Elements — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10SciencePeriodic Classification of Elements1 Mark
MCQ
The element placed with nickel in the table formed by Newlands was :
  • A
    Iron
  • ✓
    Cobalt
  • C
    Chromium
  • D
    Copper
✓

Answer

Correct option: B.
Cobalt
Newlands placed Cobalt $\ce{(Co)}$ and Nickel $\ce{(Ni)}$ in the same group as they have similar properties, but kept Iron $\ce{(Fe)}$ very far from these elements while iron, cobalt and nickel have similar properties.

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