Group 13 elements show +1 and +3 oxidation states. Relative stability of +3 oxidation…

Chemistry · JEE Main · NTA Exams — p-Block Elements

Group 13 elements show +1 and +3 oxidation states. Relative stability of +3 oxidation state may be given as

\(\mathrm{Tl}^{3+}>\mathrm{In}^{3+}>\mathrm{Ga}^{3+}>\mathrm{Al}^{3+}>\mathrm{B}^{3+}\)
\(\mathrm{B}^{3+}>\mathrm{Al}^{3+}>\mathrm{Ga}^{3+}>\mathrm{In}^{3+}>\mathrm{Tl}^{3+}\)
\(\mathrm{Al}^{3+}>\mathrm{Ga}^{3+}>\mathrm{Tl}^{3+}>\mathrm{In}^{3+}>\mathrm{B}^{3+}\)
\(\mathrm{Al}^{3+}>\mathrm{B}^{3+}>\mathrm{Ga}^{3+}>\mathrm{Tl}^{3+}>\mathrm{In}^{3+}\)

Answer

(B) B ^ 3+ > Al ^ 3+ > Ga ^ 3+ > In ^ 3+ > Tl ^ 3+

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