1.

The correct statements among I to III regarding group 13 element for oxides are: (I) Boron trioxide is acidic (II) Oxides of aluminium and gallium are amphoteric. (III) Oxides of indium and thallium are basic.

Answer»

(I) and (II) only .
(I) and (III) only
(II) and (III) only
(I), (II) and (III) only

Solution :(I), (II) and (III) only


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