MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryp-Block (group 13 and 14)Aluminium and Its Compounds
Which of the following will be formed, if we heat an aqueous solution of AlCl3 to dryness ?
A.Solid AlCl3
B.Dimer Al2Cl6
C.Al(OH)3
D.Al2O3✓ Correct
Explanation
Aqueous solution aluminium trichloride on heating gives aluminium hydroxide first. On further heating to dryness, it gives alumina as dehydrated product. 2 3 2 3 2 3 3 2 O l ( ) 2Al(O AlCl 6H O 2Al OH 6 H) hea A HC t l O 3H + ® + + ® +
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