Questions
Which has maximum polarising power?
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By Expert Faculty of Sri Chaitanya
a
Na+
b
Mg2+
c
Al3+
d
Si4+
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Correct option is D
By Fajan's rule, smaller the size of cation, larger the size of anion, larger the charge on the ion. d,f-electrons present then, larger the polarising power and larger the distortion hence, larger the covalent nature of compounds. Si" with largest charge and smallest size has maximum polarising power.Similar Questions
In which of the following pairs size of 1st element is higher as compared to 2nd ?
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