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AIEEE 2011 Solved Paper

Section: Chemistry

Question : 3 of 91

Marks: +1, -0

Solution:

Charge of cation/Size of cation is called polarising power.

\therefore

(i) Polarising power

\propto

charge of cation

(ii) Polarising power

\propto \frac{1}{\text{size of cation}}

Here the

\mathrm{AICl}_3

is satisfying the above two conditions i.e., Al is in

+3

oxidation state and also has small size. So it has more covalent character.

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