Explain the following: Metal fluorides are more ionic than metal chlorides.
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Hint : (i) According to Fajan’s Rule, bigger ions are more polarized than the
smaller ions by a particular cation.
(ii) ClO4 - is more resonance stabilized than SO4 2- since dispersal of negative charge is more effective in ClO4 as compared with SO4 2-.
(iii) 2KI + Cl2 → 2KCl + I2
5Cl2 (excess) + I2 + 6H2O → 2HIO3 + 10HCl
(colourless)
smaller ions by a particular cation.
(ii) ClO4 - is more resonance stabilized than SO4 2- since dispersal of negative charge is more effective in ClO4 as compared with SO4 2-.
(iii) 2KI + Cl2 → 2KCl + I2
5Cl2 (excess) + I2 + 6H2O → 2HIO3 + 10HCl
(colourless)
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