Ask Questions, Get Answers

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

Which of the following salts are colourless?

$\begin {array} {1 1} (1)\; Cu^{2+} \quad (2)\; Zn^{2+} \quad (3)\; Ni^{2+} \quad (4) \;Sc^{3+} \end {array}$

Can you answer this question?

1 Answer

0 votes
Answer: (2) and (4)
Both $Sc^{3+}$ and $Zn^{2+}$ have completely filled d-orbitals, ($3d^0$ and $3d^{10}$ respectively), while the other two have incompletely filled d-orbitals. Hence they are colourless.
answered Jan 29, 2014 by sreemathi.v
edited Aug 4, 2014 by balaji.thirumalai

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