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JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS
1
Medium
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Understanding
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Assertion(A) Mn-atom loses electrons first during ionisation as compared to electrons.
Reason(R) The effective nuclear charge experienced by electrons is greater than that by electrons.
Reason(R) The effective nuclear charge experienced by electrons is greater than that by electrons.
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Correct option: A
If both (A) and (R) are correct and (R) is the correct explanation of (A).
Option A is correct. Mn loses ns electrons before (n-1)d electrons because the effective nuclear charge experienced by (n-1)d electrons is greater than that by ns electrons, making it more difficult to remove them.
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