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(i) LiCIO_(4) is more solublethan NaCIO_(4) Why? (ii) Explain-IE_(1) of alkaline earth metals are higher than that of alkali metal. |
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Answer» Solution :(i) The small size of the `Li^(+)`ion means that it has a very high ENTHALPY of hydrogen and so lithium salts are much more soluble than the salts ofother group `LiCIO_(4)` is upto 12 times more soluble than `NaCIO_(4)` (ii) `IE_(1)` of alkaline earth metals`gtIE_(1)` of alkali metals . 2.`IE_(2)` of alkaline earth metals`ltIE_(2)` of alkali metals . 3. This occurs because in alkali metals the SECOND ELECTRON is to be removed from a cation which has already acquired a noble gas configuration. 4. In the case of alkaline earth metals, the second electron is to be removed from a monovalent cation, which still has one electron in the outermost shell. 5. Thus, the second electron can be removed more easily in the case of group 2 ELEMENTS than in group 1 elementss. |
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