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Which of the following statement about \mathrm{CaCl}_2 and \mathrm{HgCl}_2 is wrong.

Option: 1

\mathrm{CaCl}_2 has more melting point than \mathrm{HgCl}_2
 


Option: 2

\mathrm{CaCl}_2 has more covalent character than \mathrm{HgCl}_2
 


Option: 3

\mathrm{CaCl}_2 has higher solubility than \mathrm{HgCl}_2.
 


Option: 4

\mathrm{CaCl}_2 has more ionic character than \mathrm{HgCl}_2


Answers (1)

best_answer

For cations with the same charge and size, the one with pseudo noble gas configuration which is found in transition elements, has greater covalent character than the cation with noble gas electronic configuration, which is commonly found in alkali or alkaline earth metals. So, \text{CaCl}_{2} is more ionic than compared to \text{HgCl}_{2} .

Posted by

avinash.dongre

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