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Test Index
JEE Main Chemistry Class 11 The P-Block Elements (Group 13-14) Questions
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Question : 36
Total: 91
Choose the correct stability order of group 13 elements in their
+
1
oxidation state.
[26-Jun-2022-Shift-1]
Al
<
Ga
<
ln
<
Tl
TI
<
In
<
Ga
<
Al
Al
<
Ga
<
Tl
<
ln
Al
<
Tl
<
Ga
<
In
Validate
Solution:
Due to inert pair effect, stability of
+
3
oxidation state decreases and that of
+
1
oxidation state increases for (down the group) group 13 elements.
So, the correct order of stability of group 13 elements in their
+
1
oxidation state is
Al
<
Ga
<
In
<
TI
.
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