Fundamentholfundamenthol
JEE Main2019Chemistry
Q.

The correct statements among I to III regarding group 13 element oxides are,

(I) Boron trioxide is acidic.

(II) Oxides of aluminium and gallium are amphoteric.

(III) Oxides of indium and thallium are basic.

  1. A

    (II) and (III) only

  2. B

    (I) and (II) only

  3. C

    (I), (II) and (III)

  4. D

    (I) and (III) only

Solution

B2O3 is an acidic oxide

Al2O3 and Ga2O3 are amphoteric oxide

In2O3 and Tl2O are basic oxide

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