STANDARDChemistry-p-Block Elements
STANDARD Chemistry Group 13 Elements MCQ Question
Type: MCQ-conceptual-Medium
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.
A
(I), (II) and (III)
B
(I) and (III) only
C
(I) and (II) only
D
(II) and (III) only
Correct Answer
Option A
Detailed Explanation
Acid-base character of oxides of group-13 elements is B₂O₃ (acidic), Al₂O₃ and Ga₂O₃ (amphoteric), In₂O₃ and Tl₂O₃ (basic).
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