Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Which of the following compounds are expected to show similar colour in aqueous medium? (1)\[FeC{{l}_{2}}\] (2) \[VOC{{l}_{2}}\] (3) \[MnC{{l}_{2}}\] (4) \[CuC{{l}_{2}}\]A) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: C
Solution :
Metal ion salt having similar number of unpaired electrons in d-orbitals show similar colour in aqueous medium. In\[VOC{{l}_{2}},\]vanadium is present in\[{{V}^{4+}}\]and in \[CuC{{l}_{2}}\]copper is present as\[C{{u}^{2+}}\] \[{{V}^{4+}}:1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},\text{ }3{{s}^{2}}3{{p}^{6}},\text{ }3{{d}^{1}};\]one unpaired\[{{e}^{-}}\] \[C{{u}^{2+}}:1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}3{{d}^{9}};\]one unpaired \[{{e}^{-}}\] Hence,\[VOC{{l}_{2}}\]and\[CuC{{l}_{2}}\]show similar colour.
You need to login to perform this action.
You will be redirected in
3 sec
