Acidic Character, Basic Character and Nature of Oxides
Arrange the f...
Question
Arrange the following oxides in the decreasing orders of their basic strength. I.Tl2OII.Al2O3III.Tl2O3IV.Ga2O3
A
I>III>IV>II
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B
II>IV>III>I
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C
III>I>II>IV
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D
IV>II>I>III
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Solution
The correct option is AI>III>IV>II Since charges on the cation II, III, IV are same, we have to check the size of the cation. Order of thesize of those cation are Tl3+>Ga3+>Al3+.
So correct order of basic oxides is, Tl2O>Tl2O3>Ga2O3>Al2O3