MCQ
Which of the following statement is true regarding alkaline earth metals?
  • A
    Beryllium and barium compounds are poisonous in nature
  • B
    Beryllium shows diagonal relationship with aluminium
  • C
    Beryllium salts impart yellow colour to flame
  • Both $A$ and $B$

Answer

Correct option: D.
Both $A$ and $B$
Due to comparatively same size as aluminium, Beryllium show diagonal relationship with aluminium. Same charge/ size ratio.
Due to the high reactivity of metals, water $-$ soluble compounds of $Be$ and $Ba$ are poisonous.

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