Engineering
Chemistry
Application of Electronegativity
Question
Which of the following hydrated metal cation has maximum acidity?
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Solution
In general, metal ions with higher positive charge density are stronger acids
Fe+3 —→ 6.7 × 10–3
Cr+3 —→ 1.6 × 10–4
Al+3 —→ 1.1 × 10–5
Sc+3 —→ 1.1 × 10–5