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Which of the following statement is incorrect?
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By Expert Faculty of Sri Chaitanya
a
The trichlorides of group-l3 elements, on hydrolysis form M(OH)4-
b
AlCl3 inacidifiedaqueoussolutionforms AlH2O63+
c
Boron is unreactive in crystalline form
d
boron forms a very thin hydroxide layer on its surface
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Correct option is D
The trichlorides of group-l3 elements on hydrolysis form tetrahedral M(OH)4- species; the hybridization state of element M is sp3. Aluminium chloride in acidified aqueous solution forms octahedral AlH2O63+ ion. In this complex ion, the 3d -orbitals of Al are involved and the hybridization state of Al is sp3d2.Boron is unreactive in crystalline form. Aluminium forms a very thin oxide layer on its surface which protects the metal from further attack by oxygen molecules.Similar Questions
The correct order of matching of the following compounds is
(A) Borazine (B) Plaster of Paris (C) Boric acid (C) Qwartz (E) Buckminsterfullerene | (i) (ii) C60 (iii) SiO2 (iv) B3N3H6 (v) H3BO3 |
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