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The p -Block Elements Ncert Solutions Chemistry Class 11th Chemistry Class 11th

The correct order of ionic radii for the ions, $P^{3 -}, S^{2 -}, C a^{2 +}, K^{+}, C l^{-} i s :$

Option 1 -

$K^{+} > C a^{2 +} > P^{3 -} > S^{2 -} > C l^{-}$

Option 2 -

$P^{3 -} > S^{2 -} > C l^{-} > C a^{2 +} > K^{+}$

Option 3 -

$C l^{-} > S^{2 -} > P^{3 -} > C a^{2 +} > K^{+}$

Option 4 -

$P^{3 -} > S^{2 -} > C l^{-} > K^{+} > C a^{2 +}$

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Answered by

alok kumar singh | Contributor-Level 10

3 months ago

Correct Option - 4

Detailed Solution:

Ionic radii of cations is smaller than anions, also more the positive charge less be the ionic radii and more the negative charge more be the ionic radii. Hence correct order of ionic radii is, $p^{3 -} > S^{2 -} > C l^{-} > K^{+} > C a^{2 +}$

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The correct order of ionic radii for the ions, $P^{3 -}, S^{2 -}, C a^{2 +}, K^{+}, C l^{-} i s :$

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The correct order of ionic radii for the ions, P 3 − , S 2 − , C a 2 + , K + , C l − i s :

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The correct order of ionic radii for the ions, $P^{3 -}, S^{2 -}, C a^{2 +}, K^{+}, C l^{-} i s :$