For the properties mentioned, the correct trend for the different species is inA. strength as Lewis acids - `BCl_(3) gt AlCl_(3) gt GaCl_(3)`B. inert pair effect - `Al gt Ga gt In`C. oxidising property `-Al^(3+) gt Ga gt In`D. first ionization enthalpy `-B gt Al gt Tl`

For the properties mentioned, the correct trend for the different spec

1.	For the properties mentioned, the correct trend for the different species is inA. strength as Lewis acids - `BCl_(3) gt AlCl_(3) gt GaCl_(3)`B. inert pair effect - `Al gt Ga gt In`C. oxidising property `-Al^(3+) gt Ga gt In`D. first ionization enthalpy `-B gt Al gt Tl`
Answer» Correct Answer - A Only option (a) , i.e., strength of Lewis acids decreases in the order : `BCl_(3) gt AlCl_(3) gt GaCl_(3)` is correct while all other options are incorrect as explained below : Al does not show inert pair effect, `Tl^(3+)` has the highest oxidising power while ionization enthalpy of Tl is higher than that of Al.

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For the properties mentioned, the correct trend for the different species is inA. strength as Lewis acids - `BCl_(3) gt AlCl_(3) gt GaCl_(3)`B. inert pair effect - `Al gt Ga gt In`C. oxidising property `-Al^(3+) gt Ga gt In`D. first ionization enthalpy `-B gt Al gt Tl`

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