Assertion : ${Na}^{+}$ and ${Cl}^{-}$ have similar ionic radius. Reason : ${Z}_{\text {eff}}$ in ${Na}^{+}$ and ${Cl}^{-}$ are same.

If both Assertion & Reason are True & the Reason is correct explanation of the Assertion

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion

If Assertion is True but the Reason is False

JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

1 Medium

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Analyzing +4 | -1

Assertion :

{Na}^{+}

and

{Cl}^{-}

have similar ionic radius.

Reason :

{Z}_{\text {eff}}

{Na}^{+}

and

{Cl}^{-}

are same.

View answer and explanation

Correct option: D

If both Assertion & Reason are false

Option D is correct. Both the Assertion and Reason are false because

{Na}^{+}

and

{Cl}^{-}

do not have similar ionic radii, and their effective nuclear charges are different.