The correct statements from the following are : (A) The decreasing order of atomic radii of group 13 elements is Tl In Ga Al B. (B) Down the group electronegativity decreases from top to botto

Question

The correct statements from the following are :

(A) The decreasing order of atomic radii of group 13 elements is Tl > In > Ga > Al > B.
(B) Down the group electronegativity decreases from top to bottom.
(C) Al dissolves in dil. HCl and liberate H2 but conc. HNO3 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 [Al(H2O)6] 3+ ion is sp 3d

Prashant Kotian · Accepted Answer

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