According to Fajan's Rule, covalent character is most favoured in ______

Small cation, large anion

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Small cation, small anion

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Large cation, large anion

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Large cation, small anion

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Solution

The correct option is A
Small cation, large anion

Cation size $α \frac{1}{p o l a r i z i n g p o w e r}$

Anion size $α$ Polarizability

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Similar questions

Polarisation may be called the distortion of the shape of an anion by an adjacently placed cation.which of the following statements is correct

A minimum polarization is brought about by a cation of low radius

B a large cation is likely to bring about the largedegree of polarization

C maximum polarisation is brought about a cation of highcharge

D a small anion is likely to undergo a large degree of polarization

Q. ______ cation and ______ anion favour least covalent character.

Q. Assertion :An important feature of Fluorite structure is that cations being large in size occupy FCC lattice points whereas anions occupy all the tetrahedral voids giving the formula unit

A B_{2}

(A: cation, B: anion). Reason: There are 6 cations and 12 anions per FCC unit cell of the Fluorite structure.

STATEMENT-1: An important feature of Fluorite structures is that cations being large in size occupy FCC lattice points whereas anions occupy all the tetrahedral voids giving the formula unit

A B_{2}

(A: cation, B: anion).

STATEMENT-2: There are 6 cations and 12 anions per FCC unit cell of the Fluorite structure.

The CsCl type structure is exhibited by alkali halides only when the radius of the cation is large enough to keep touching its eight nearest neighbour anions. Below what minimum ratio of cation to anion radii $(\frac{r_{+}}{r_{-}})$ this contact is prevented ?

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According to Fajan's Rule, covalent character is most favoured in ______

The correct option is A Small cation, large anion Cation size α1polarizing power Anion size α Polarizability

The correct option is A
Small cation, large anion

Cation size $α \frac{1}{p o l a r i z i n g p o w e r}$

Anion size $α$ Polarizability