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JEE Chemistry · Medium

Periodic Table and Periodicity: Periodic trends MCQ

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Periodic trendsMediumQuestion 840007

Question

The diagonal relationship exists between:
  1. A
    Li-Mg, Be-Al, B-Si
    Correct
  2. B
    Li-Na, Be-Mg, B-Al
  3. C
    H-Li, C-Si, N-P
  4. D
    Na-K, Ca-Sr, Ga-In

Correct answer

Li-Mg, Be-Al, B-Si

Explanation

Diagonal relationship: elements diagonally adjacent in the periodic table have similar properties due to similar size/charge density. Pairs: Li-Mg, Be-Al, B-Si. Example: LiCl and MgCl₂ both form covalent-character halides.

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