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JEE Main Chemistry Class 11 Classification of Elements and Periodicity in Properties 2 Questions
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Question : 5
Total: 36
Given below are two statements :
Statement I: In group 13, the stability of +1 oxidation state increases down the group.
Statement II: The atomic size of gallium is greater than that of aluminium.
In the light of the above statements, choose the most appropriate answer from the options given below:
[5 Apr 2024 Shift 1]
Statement I is incorrect but Statement II is correct
Both Statement I and Statement II are correct
Both Statement I and Statement II are incorrect
Statement I is correct but Statement II is incorrect
Validate
Solution:
Statement II: Number of
d
&
f electrons, increases down the group and due to poor shielding of
d
&
f
e
−
, stability of lower oxidation states increases down the group
Statement II : The atomic size of aluminium is greater than that of gallium.
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