JEE Main 2024 — 5 April, Shift 2 — Question 77

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) Al dissolves in dil. HCl and liberate $\mathrm{H}_{2}$ but conc. $\mathrm{HNO}_{3}$ renders 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 Al in $\left[\mathrm{Al}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}$ ion is $\mathrm{sp}^{3} \mathrm{~d}^{2}$

Choose the correct answer from the options given below :