Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

Which one of the following compound contains a cation having non-inert gas outermost configuration?

$\begin{array}{1 1}(a)\;CaCl_2&(b)\; CuCl_2\\(c)\;NaCl&(d)\;KCl\end{array}$

Can you answer this question?

1 Answer

0 votes
$CaCl_2\rightarrow Ca^{2+}+2Cl^-;Ca^{2+}$(18 electrons);$1s^2(2s^22p^6)(3s^23p^6)$
$CuCl_2\rightarrow Cu^{2+}+2Cl^-;Ca^{2+}$(27 electrons);$1s^2(2s^22p^6)(3s^23p^63d^9)$
$NaCl\rightarrow Na^{+}+Cl^-;Na^{2+}$(10 electrons);$1s^2(2s^22p^6)$
$KCl\rightarrow K^{+}+2Cl^-;Cl^{-}$(18 electrons);$1s^2(2s^22p^6)(3s^23p^6)$
The cation in $CuCl_2$ is not having inert gas outer most configuration.
Hence (b) is the correct answer.
answered Mar 10, 2014 by sreemathi.v

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App