Question
State and illustrate Fajan’s rules giving suitable examples.
Answer :
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Fajan’s rules help in predicting whether a chemical bond will be ionic or covalent based on the nature of the cation and anion. According to these rules, a bond shows more covalent character when the cation has high polarising power and the anion has high polarisability. The polarising power of a cation increases when it is small in size, has high charge, and has an electronic configuration with pseudo-noble gas
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