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p-Block Elements - I
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Assertion : Atomic radius of gallium is higher than that of aluminium
Reason : The presence of additional $d-$ electron offer poor screening effect for the outer electrons from increased nuclear charge.
A
If the Assertion is correct but Reason is incorrect.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
D
If both the Assertion and Reason are incorrect.
(AIIMS-2017)
Solution
Atomic radius of gallium is less than that of aluminium.
Standard 11
Chemistry
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