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Standard XII

Chemistry

Polarisability and Fajan's Rule

Select the co...

Question

Select the correct statement(s).
(I) Polarizability of $S^{2 -}$ is lower than $S e^{2 -}$
(II) Polarizability of $S^{2 -}$ is higher than $C l^{-}$
(III) Polarizability of $S^{2 -}$ is lower than $P^{3 -}$
(IV) Polarizability of $O^{2 -}$ is higher than $S^{2 -}$

I, II and III

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I and II

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II and IV

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All of these

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Solution

The correct option is A I, II and III
From Fajan's rule,
(I) & (IV) $\Rightarrow$ for similarly charged anions, higher the size of the anion, higher is its polarisability. Thus polarisability of $S e^{2 -} > S^{2 -} > O^{2 -}$
(II) & (III) $\Rightarrow$ Higher the charge on the anion, higher is its polarisability.
$∴$ polarisability of $P^{3 -} > S^{2 -} > C l^{-}$

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Similar questions

Q. Select the correct statement(s).
(i) Polarizability of

S^{2 -}

is lesser than

S e^{2 -}

(ii) Polarizability of

S^{2 -}

is higher than

C l^{-}

(iii) polarizability of

S^{2 -}

is lesser than

P^{3 -}

(iv) Polarizability of

O^{2 -}

is higher than

S^{2 -}

Q. Select the correct statement(s).
(I) Polarizability of

S^{2 -}

is lower than

S e^{2 -}

(II) Polarizability of

S^{2 -}

is higher than

C l^{-}

(III) Polarizability of

S^{2 -}

is lower than

P^{3 -}

(IV) Polarizability of

O^{2 -}

is higher than

S^{2 -}

Q. Select the correct statement(s).
(i) Polarizability of

S^{2 -}

is lesser than

S e^{2 -}

(ii) Polarizability of

S^{2 -}

is higher than

C l^{-}

(iii) polarizability of

S^{2 -}

is lesser than

P^{3 -}

(iv) Polarizability of

O^{2 -}

is higher than

S^{2 -}

Q. Select the correct statement(s).

(I)

Polarisability of

S^{2 -}

is lower than

S e^{2 -}

(I I)

Polarisability of

S^{2 -}

is higher than

C l^{-}

(I I I)

Polarisability of

S^{2 -}

is lower than

P^{3 -}

(I V)

Polarisability of

O^{2 -}

is higher than

S^{2 -}

Q. Select the correct statement(s).

(I)

Polarisability of

S^{2 -}

is lower than

S e^{2 -}

(I I)

Polarisability of

S^{2 -}

is higher than

C l^{-}

(I I I)

Polarisability of

S^{2 -}

is lower than

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(I V)

Polarisability of

O^{2 -}

is higher than

S^{2 -}

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Select the correct statement(s). (I) Polarizability of S2− is lower than Se2− (II) Polarizability of S2− is higher than Cl− (III) Polarizability of S2− is lower than P3− (IV) Polarizability of O2− is higher than S2−

Select the correct statement(s).
(I) Polarizability of $S^{2 -}$ is lower than $S e^{2 -}$
(II) Polarizability of $S^{2 -}$ is higher than $C l^{-}$
(III) Polarizability of $S^{2 -}$ is lower than $P^{3 -}$
(IV) Polarizability of $O^{2 -}$ is higher than $S^{2 -}$