Which one is more acidic in aqueous solution ?

CHEMISTRY · Single correct · AP · Chemistry · Acids and Bases · Acids and Bases

Problem

Which one is more acidic in aqueous solution ? (1) NiCl2\text{NiCl}_2 (2) FeCl3\text{FeCl}_3 (3) AlCl3\text{AlCl}_3 (4) BeCl2\text{BeCl}_2

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