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Question

(C) Lewis acid strength decreases down the group; therefore,the correct order is $BCl_{3} > AlCl_{3} > GaCl_{3}$.First ionization energy for Group $13

Vedclass · Accepted Answer

strength as Lewis acid $-BCl_{3} > AlCl_{3} > GaCl_{3}$

Vedclass · Answer

(C) Lewis acid strength decreases down the group; therefore,the correct order is $BCl_{3} > AlCl_{3} > GaCl_{3}$.First ionization energy for Group $13$ elements generally decreases down the group but shows irregularities due to $d$-electron and lanthanoid contraction.The correct order for first ionization enthalpy is $B > Tl > Ga > Al > In$.Inert pair effect is more pronounced in heavier elements,making $Tl^{+}$ more stable than $Tl^{3+}$.Consequently,$Tl^{3+}$ is a strong oxidizing agent,making the oxidizing property order $Tl^{3+} > In^{3+} > Al^{3+}$.

For the properties mentioned,the correct trend for the different species is in

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