Assertion :All isoelectronic species possess equal ionic sizes. Reason: Ionic size depends only on the number of electrons in the species.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution
The correct option is D Both Assertion and Reason are incorrect Isoelectric species posses same number of electrons and ionic size doesn't depend on the number of electrons. Hence both assertion and reason are false.