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JEE Main Chemistry Class 12 The P Block Elements (15-18) Part 2 Questions
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Question : 67
Total: 84
Given below are two statements :
Statement I : The pentavalent oxide of group- 15 element,
E
2
O
5
, is less acidic than trivalent oxide,
E
2
O
3
, of the same element.
Statement II : The acidic character of trivalent oxide of group 15 elements,
E
2
O
3
, decreases down the group.
In light of the above statements, choose most appropriate answer from the options given below :
[28-Jun-2022-Shift-1]
Both Statement I and Statement II are true.
Both Statement I and Statement II are false.
Statement I is true, but Statement II is false.
Statement I is false, but Statement II is true.
Validate
Solution:
As +ve oxidation state increases, EN of element increases hence acidic character increases. Down the group, non-metallic character decreases, acidic character decreases.
Acidic character :
E
2
O
5
>
E
2
O
3
Down the group, acidic character of
E
2
O
3
decreases
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