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  9. Q16

RRB Group D (Level-1 posts) 2018 · Question 16 of 96

Who predicted the existence of some yet to be discovered elements on the basis of gaps in his periodic table?

  1. AMendeleevCorrect
  2. BDobereiner
  3. CNewlands
  4. DMosely

Answer: A. Mendeleev

Official answer key verified. Detailed explanation coming soon.

Source: Solved RRB Group-D 23rd Sep 2018 Shift-2 Paper with Solutions (EduRev) · reliable-secondary

← Q15View full paper (96 questions)Q17 →

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