Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) JEE ADVANCED Previous Year Question Subjective Type
Published on: August 13, 2026

Beryllium chloride shows acidic nature in water or why BeCl 2 is easily hydrolysed ?

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(i) Beryllium chloride is acidic, when dissolved in water because the hydrated ion hydrolysed producing H 3 O + . This happens because the Be–O bond is very strong, and so in the hydrated ion this weakens the
O–H bonds, and hence there is tendency to lose portons.

BeCl 2 + 4H 2 O ⎯→ [Be(H 2 O) 4 ] Cl 2 ; [Be(H 2 O) 4 ] 2+ + H 2 O ⎯→ [Be(H 2 O) 3 (OH)] + + H 3 O +

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