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Periodic Classification of Elements — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10SciencePeriodic Classification of Elements1 Mark
MCQ
Dobereiner’s triad arranged the elements with similar properties into :
  • A
    Periods
  • ✓
    Groups
  • C
    Both period and group
  • D
    None of these
✓

Answer

Correct option: B.
Groups

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