The correct statements from the following are (A) The decreasing order of atomic radii of group 13 elements is \(\mathrm…
The correct statements from the following are
(A) The decreasing order of atomic radii of group 13 elements is \(\mathrm{Tl}>\mathrm{In}>\mathrm{Ga}>\mathrm{Al}>\mathrm{B}\)
(B) Down the group 13 electronegativity decreases from top to bottom.
(C) \(\mathrm{Al}\) dissolves in \(\mathrm{dil}.\mathrm{HCl}\) and liberates \({H}_{2}\) but conc. \(HN{O}_{3}\) renders \(\mathrm{Al}\) passive by forming a protective oxide layer on the surface.
(D) All elements of group 13 exhibits highly stable + 1 oxidation state.
(E) Hybridisation of \(\mathrm{Al}\) in \({\left[\mathrm{Al}{({\mathrm{H}}_{2}\mathrm{O})}_{6}\right]}^{3+}\) ion is \(s{p}^{3}{d}^{2}\).
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