MEDIUMMCQ SINGLENEET ChemistryInorganic 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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