Releted MCQ Question on
Inorganic Chemistry >> Co - ordination Compounds
Releted Question 1
Amongst $$Ni{\left( {CO} \right)_4},{\left[ {Ni{{\left( {CN} \right)}_4}} \right]^{2 - }}{\text{and}}\,NiCl_4^{2 - }$$
A.
$$Ni{\left( {CO} \right)_4}\,{\text{and}}\,NiCl_4^{2 - }$$ are diamagnetic and $${\left[ {Ni{{\left( {CN} \right)}_4}} \right]^{2 - }}$$ is paramagnetic
B.
$$NiCl_4^{2 - }\,{\text{and}}\,{\left[ {Ni{{\left( {CN} \right)}_4}} \right]^{2 - }}$$ are diamagnetic and $$Ni{\left( {CO} \right)_4}$$ is paramagnetic
C.
$$Ni{\left( {CO} \right)_4}\,{\text{and}}\,{\left[ {Ni{{\left( {CN} \right)}_4}} \right]^{2 - }}$$ are diamagnetic and $$NiCl_4^{2 - }$$ is paramagnetic
D.
$$Ni{\left( {CO} \right)_4}$$ is diamagnetic and $$NiCl_4^{2 - }\,{\text{and}}\,{\left[ {Ni{{\left( {CN} \right)}_4}} \right]^{2 - }}$$ are paramagnetic
Releted Question 2
The geometry of $$Ni{\left( {CO} \right)_4}\,{\text{and}}\,Ni{\left( {PP{h_3}} \right)_2}C{l_2}\,{\text{are}}$$
A.
both square planar
B.
tetrahedral and square planar, respectively
C.
both tetrahedral
D.
square planar and tetrahedral, respectively
Releted Question 3
The complex ion which has no $$'d'$$ electron in the central metal atom is
A.
$${\left[ {Mn{O_4}} \right]^ - }$$
B.
$${\left[ {Co{{\left( {N{H_3}} \right)}_6}} \right]^{3 + }}$$
C.
$${\left[ {Fe{{\left( {CN} \right)}_6}} \right]^{3 - }}$$
D.
$${\left[ {Cr{{\left( {{H_2}O} \right)}_6}} \right]^{3 + }}$$
Releted Question 4
In the process of extraction of gold,
Roasted gold ore $$ + C{N^ - } + {H_2}O\mathop \to \limits^{{O_2}} \left[ X \right] + O{H^ - }$$
$$\left[ X \right] + Zn \to \left[ Y \right] + Au$$
Identify the complexes $$\left[ X \right]\,\,{\text{and}}\,\,\left[ Y \right]$$
A.
$$X = {\left[ {Au{{\left( {CN} \right)}_2}} \right]^ - },Y = {\left[ {Zn{{\left( {CN} \right)}_4}} \right]^{2 - }}$$
B.
$$X = {\left[ {Au{{\left( {CN} \right)}_4}} \right]^{3 - }},Y = {\left[ {Zn{{\left( {CN} \right)}_4}} \right]^{2 - }}$$
C.
$$X = {\left[ {Au{{\left( {CN} \right)}_2}} \right]^ - },Y = {\left[ {Zn{{\left( {CN} \right)}_6}} \right]^{4 - }}$$
D.
$$X = {\left[ {Au{{\left( {CN} \right)}_4}} \right]^ - },Y = {\left[ {Zn{{\left( {CN} \right)}_4}} \right]^{2 - }}$$