Question:
In group 13 elements, element Y has the lowest boiling point and element Z has lowest melting point. The nature of oxides of Y and Z is respectively:
In group 13 elements, element Y has the lowest boiling point and element Z has lowest melting point. The nature of oxides of Y and Z is respectively:
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Metallic character increases down the group, so oxides become more basic as atomic number increases.
Updated On: Jun 9, 2026
- Acidic, amphoteric
- Amphoteric, Basic
- Basic, amphoteric
- Amphoteric, amphoteric
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The Correct Option is C
Solution and Explanation
Concept:
Group 13 elements (B, Al, Ga, In, Tl) show distinct trends in thermal properties and metallic character as we move down the group.
Step 1: Identify elements Y and Z.
Gallium (Ga) has the lowest melting point among Group 13 elements (Z). Thallium (Tl) has a relatively low boiling point in its elemental form compared to others (Y).
Step 2: Analyze the nature of their oxides.
The oxide of Thallium (\(Tl_2O\)) is basic in nature. The oxide of Gallium (\(Ga_2O_3\)) is amphoteric in nature. \[ \boxed{\text{Basic, amphoteric}} \]
Step 1: Identify elements Y and Z.
Gallium (Ga) has the lowest melting point among Group 13 elements (Z). Thallium (Tl) has a relatively low boiling point in its elemental form compared to others (Y).
Step 2: Analyze the nature of their oxides.
The oxide of Thallium (\(Tl_2O\)) is basic in nature. The oxide of Gallium (\(Ga_2O_3\)) is amphoteric in nature. \[ \boxed{\text{Basic, amphoteric}} \]
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