Given below are two statements : Statement I : In group 13, the stability of +1 oxidation state increases…
Given below are two statements :
Statement I : In group 13, the stability of +1 oxidation state increases down the group. Statement II : The atomic size of gallium is greater than that of aluminium. In the light of the above statements, choose the most appropriate answer from the options given below :
Both Statement I and Statement II are correct
Statement I is incorrect but Statement II is correct
Both Statement I and Statement II are incorrect
Statement I is correct but Statement II is incorrect
Solution
Statement I : Number of $d \&$ f electrons, increases down the group and due to poor shielding of $d \& f$ $\mathrm{e}^{-}$, stability of lower oxidation states increases down the group
Statement II : The atomic size of aluminium is greater than that of gallium.