09. COORDINATION COMPOUNDS
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COORDINATION COMPOUNDS

28882 Which of the following complexes exhibits the highest paramagnetic behaviour ?where \(gly =\) glycine, \(en =\) ethylenediamine and  \(bpy =\) bipyridyl moities. (At. nos. \(Ti = 22, V = 23,\)\( Fe = 26, Co = 27\))

1 \([Co(ox)_2(OH)_2]^-\)
2 \([Ti(NH_3)_6]^{3+}\)
3 \([V(gly)_2(OH)_2(NH_3)_2]^+\)
4 \([Fe(en)(bpy)(NH_3)_2]^{2+}\)
COORDINATION COMPOUNDS

28883 In which of the following coordination entities the magnitude of \(\Delta _o\) (\(CFSE\) in octahedral field) will be maximum ? (At. No. \(Co = 27\) )

1 \([Co(CN)_6]^{3-}\)
2 \([Co(C_2O_4)_3]^{3-}\)
3 \([Co(H_2O)_6]^{3+}\)
4 \([Co(NH_3)_6]^{3+} \)
COORDINATION COMPOUNDS

28884 Which of the following will give a pair of enantiomorphs ?\((en = NH_2CH_2CH_2NH_2)\)

1 \([Cr(NH_3)_6][Co(CN)_6]\)
2 \([Co(en)_2Cl_2]Cl\)
3 \([Pt(NH_3)_4][PtCl_6]\)
4 \([Co(NH_3)_4Cl_2]NO_2\)
COORDINATION COMPOUNDS

28885 The \(d\) electron configurations of \(Cr^{2+}, Mn^{2+}, Fe^{2+}\) and \(Ni^{2+}\) are \(3d^4, 3d^5, 3d^6\) and \(3d^8\) respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour ?(At. No. \(Cr = 24, Mn = 25, \)\(Fe = 26, Ni = 28\))

1 \([Fe(H_2O)_6]^{2+}\)
2 \([Ni(H_2O)_6]^{2+}\)
3 \([Cr(H_2O)_6]^{2+}\)
4 \([Mn(H_2O)_6]^{2+}\)
COORDINATION COMPOUNDS

28886 \([Cr(H_2O)_6]Cl_3\) (At. no. of \(Cr = 24\)) has a magnetic moment of \(3.83\, B.M.\) The correct distribution of \(3d\) electrons in the chromium of the complex is

1 \(3{{d_x}^1}_y , 3{{d_y}^1}_z , 3d_z^{12}\)
2 \(3d^1_{(x2-y2)}, 3{{d_z}^1}_2 , 3{{d_x}^1}_z\)
3 \(3{{d_x}^1}_y , 3d^1_{(x2-y2)}, 3{{d_y}^1}_z\)
4 \(3{{d_x}^1}_y, 3{{d_y}^1}_z , 3{{d_x}^1}_z\)
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COORDINATION COMPOUNDS

28882 Which of the following complexes exhibits the highest paramagnetic behaviour ?where \(gly =\) glycine, \(en =\) ethylenediamine and  \(bpy =\) bipyridyl moities. (At. nos. \(Ti = 22, V = 23,\)\( Fe = 26, Co = 27\))

1 \([Co(ox)_2(OH)_2]^-\)
2 \([Ti(NH_3)_6]^{3+}\)
3 \([V(gly)_2(OH)_2(NH_3)_2]^+\)
4 \([Fe(en)(bpy)(NH_3)_2]^{2+}\)
COORDINATION COMPOUNDS

28883 In which of the following coordination entities the magnitude of \(\Delta _o\) (\(CFSE\) in octahedral field) will be maximum ? (At. No. \(Co = 27\) )

1 \([Co(CN)_6]^{3-}\)
2 \([Co(C_2O_4)_3]^{3-}\)
3 \([Co(H_2O)_6]^{3+}\)
4 \([Co(NH_3)_6]^{3+} \)
COORDINATION COMPOUNDS

28884 Which of the following will give a pair of enantiomorphs ?\((en = NH_2CH_2CH_2NH_2)\)

1 \([Cr(NH_3)_6][Co(CN)_6]\)
2 \([Co(en)_2Cl_2]Cl\)
3 \([Pt(NH_3)_4][PtCl_6]\)
4 \([Co(NH_3)_4Cl_2]NO_2\)
COORDINATION COMPOUNDS

28885 The \(d\) electron configurations of \(Cr^{2+}, Mn^{2+}, Fe^{2+}\) and \(Ni^{2+}\) are \(3d^4, 3d^5, 3d^6\) and \(3d^8\) respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour ?(At. No. \(Cr = 24, Mn = 25, \)\(Fe = 26, Ni = 28\))

1 \([Fe(H_2O)_6]^{2+}\)
2 \([Ni(H_2O)_6]^{2+}\)
3 \([Cr(H_2O)_6]^{2+}\)
4 \([Mn(H_2O)_6]^{2+}\)
COORDINATION COMPOUNDS

28886 \([Cr(H_2O)_6]Cl_3\) (At. no. of \(Cr = 24\)) has a magnetic moment of \(3.83\, B.M.\) The correct distribution of \(3d\) electrons in the chromium of the complex is

1 \(3{{d_x}^1}_y , 3{{d_y}^1}_z , 3d_z^{12}\)
2 \(3d^1_{(x2-y2)}, 3{{d_z}^1}_2 , 3{{d_x}^1}_z\)
3 \(3{{d_x}^1}_y , 3d^1_{(x2-y2)}, 3{{d_y}^1}_z\)
4 \(3{{d_x}^1}_y, 3{{d_y}^1}_z , 3{{d_x}^1}_z\)
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COORDINATION COMPOUNDS

28882 Which of the following complexes exhibits the highest paramagnetic behaviour ?where \(gly =\) glycine, \(en =\) ethylenediamine and  \(bpy =\) bipyridyl moities. (At. nos. \(Ti = 22, V = 23,\)\( Fe = 26, Co = 27\))

1 \([Co(ox)_2(OH)_2]^-\)
2 \([Ti(NH_3)_6]^{3+}\)
3 \([V(gly)_2(OH)_2(NH_3)_2]^+\)
4 \([Fe(en)(bpy)(NH_3)_2]^{2+}\)
COORDINATION COMPOUNDS

28883 In which of the following coordination entities the magnitude of \(\Delta _o\) (\(CFSE\) in octahedral field) will be maximum ? (At. No. \(Co = 27\) )

1 \([Co(CN)_6]^{3-}\)
2 \([Co(C_2O_4)_3]^{3-}\)
3 \([Co(H_2O)_6]^{3+}\)
4 \([Co(NH_3)_6]^{3+} \)
COORDINATION COMPOUNDS

28884 Which of the following will give a pair of enantiomorphs ?\((en = NH_2CH_2CH_2NH_2)\)

1 \([Cr(NH_3)_6][Co(CN)_6]\)
2 \([Co(en)_2Cl_2]Cl\)
3 \([Pt(NH_3)_4][PtCl_6]\)
4 \([Co(NH_3)_4Cl_2]NO_2\)
COORDINATION COMPOUNDS

28885 The \(d\) electron configurations of \(Cr^{2+}, Mn^{2+}, Fe^{2+}\) and \(Ni^{2+}\) are \(3d^4, 3d^5, 3d^6\) and \(3d^8\) respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour ?(At. No. \(Cr = 24, Mn = 25, \)\(Fe = 26, Ni = 28\))

1 \([Fe(H_2O)_6]^{2+}\)
2 \([Ni(H_2O)_6]^{2+}\)
3 \([Cr(H_2O)_6]^{2+}\)
4 \([Mn(H_2O)_6]^{2+}\)
COORDINATION COMPOUNDS

28886 \([Cr(H_2O)_6]Cl_3\) (At. no. of \(Cr = 24\)) has a magnetic moment of \(3.83\, B.M.\) The correct distribution of \(3d\) electrons in the chromium of the complex is

1 \(3{{d_x}^1}_y , 3{{d_y}^1}_z , 3d_z^{12}\)
2 \(3d^1_{(x2-y2)}, 3{{d_z}^1}_2 , 3{{d_x}^1}_z\)
3 \(3{{d_x}^1}_y , 3d^1_{(x2-y2)}, 3{{d_y}^1}_z\)
4 \(3{{d_x}^1}_y, 3{{d_y}^1}_z , 3{{d_x}^1}_z\)
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COORDINATION COMPOUNDS

28882 Which of the following complexes exhibits the highest paramagnetic behaviour ?where \(gly =\) glycine, \(en =\) ethylenediamine and  \(bpy =\) bipyridyl moities. (At. nos. \(Ti = 22, V = 23,\)\( Fe = 26, Co = 27\))

1 \([Co(ox)_2(OH)_2]^-\)
2 \([Ti(NH_3)_6]^{3+}\)
3 \([V(gly)_2(OH)_2(NH_3)_2]^+\)
4 \([Fe(en)(bpy)(NH_3)_2]^{2+}\)
COORDINATION COMPOUNDS

28883 In which of the following coordination entities the magnitude of \(\Delta _o\) (\(CFSE\) in octahedral field) will be maximum ? (At. No. \(Co = 27\) )

1 \([Co(CN)_6]^{3-}\)
2 \([Co(C_2O_4)_3]^{3-}\)
3 \([Co(H_2O)_6]^{3+}\)
4 \([Co(NH_3)_6]^{3+} \)
COORDINATION COMPOUNDS

28884 Which of the following will give a pair of enantiomorphs ?\((en = NH_2CH_2CH_2NH_2)\)

1 \([Cr(NH_3)_6][Co(CN)_6]\)
2 \([Co(en)_2Cl_2]Cl\)
3 \([Pt(NH_3)_4][PtCl_6]\)
4 \([Co(NH_3)_4Cl_2]NO_2\)
COORDINATION COMPOUNDS

28885 The \(d\) electron configurations of \(Cr^{2+}, Mn^{2+}, Fe^{2+}\) and \(Ni^{2+}\) are \(3d^4, 3d^5, 3d^6\) and \(3d^8\) respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour ?(At. No. \(Cr = 24, Mn = 25, \)\(Fe = 26, Ni = 28\))

1 \([Fe(H_2O)_6]^{2+}\)
2 \([Ni(H_2O)_6]^{2+}\)
3 \([Cr(H_2O)_6]^{2+}\)
4 \([Mn(H_2O)_6]^{2+}\)
COORDINATION COMPOUNDS

28886 \([Cr(H_2O)_6]Cl_3\) (At. no. of \(Cr = 24\)) has a magnetic moment of \(3.83\, B.M.\) The correct distribution of \(3d\) electrons in the chromium of the complex is

1 \(3{{d_x}^1}_y , 3{{d_y}^1}_z , 3d_z^{12}\)
2 \(3d^1_{(x2-y2)}, 3{{d_z}^1}_2 , 3{{d_x}^1}_z\)
3 \(3{{d_x}^1}_y , 3d^1_{(x2-y2)}, 3{{d_y}^1}_z\)
4 \(3{{d_x}^1}_y, 3{{d_y}^1}_z , 3{{d_x}^1}_z\)
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COORDINATION COMPOUNDS

28882 Which of the following complexes exhibits the highest paramagnetic behaviour ?where \(gly =\) glycine, \(en =\) ethylenediamine and  \(bpy =\) bipyridyl moities. (At. nos. \(Ti = 22, V = 23,\)\( Fe = 26, Co = 27\))

1 \([Co(ox)_2(OH)_2]^-\)
2 \([Ti(NH_3)_6]^{3+}\)
3 \([V(gly)_2(OH)_2(NH_3)_2]^+\)
4 \([Fe(en)(bpy)(NH_3)_2]^{2+}\)
COORDINATION COMPOUNDS

28883 In which of the following coordination entities the magnitude of \(\Delta _o\) (\(CFSE\) in octahedral field) will be maximum ? (At. No. \(Co = 27\) )

1 \([Co(CN)_6]^{3-}\)
2 \([Co(C_2O_4)_3]^{3-}\)
3 \([Co(H_2O)_6]^{3+}\)
4 \([Co(NH_3)_6]^{3+} \)
COORDINATION COMPOUNDS

28884 Which of the following will give a pair of enantiomorphs ?\((en = NH_2CH_2CH_2NH_2)\)

1 \([Cr(NH_3)_6][Co(CN)_6]\)
2 \([Co(en)_2Cl_2]Cl\)
3 \([Pt(NH_3)_4][PtCl_6]\)
4 \([Co(NH_3)_4Cl_2]NO_2\)
COORDINATION COMPOUNDS

28885 The \(d\) electron configurations of \(Cr^{2+}, Mn^{2+}, Fe^{2+}\) and \(Ni^{2+}\) are \(3d^4, 3d^5, 3d^6\) and \(3d^8\) respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour ?(At. No. \(Cr = 24, Mn = 25, \)\(Fe = 26, Ni = 28\))

1 \([Fe(H_2O)_6]^{2+}\)
2 \([Ni(H_2O)_6]^{2+}\)
3 \([Cr(H_2O)_6]^{2+}\)
4 \([Mn(H_2O)_6]^{2+}\)
COORDINATION COMPOUNDS

28886 \([Cr(H_2O)_6]Cl_3\) (At. no. of \(Cr = 24\)) has a magnetic moment of \(3.83\, B.M.\) The correct distribution of \(3d\) electrons in the chromium of the complex is

1 \(3{{d_x}^1}_y , 3{{d_y}^1}_z , 3d_z^{12}\)
2 \(3d^1_{(x2-y2)}, 3{{d_z}^1}_2 , 3{{d_x}^1}_z\)
3 \(3{{d_x}^1}_y , 3d^1_{(x2-y2)}, 3{{d_y}^1}_z\)
4 \(3{{d_x}^1}_y, 3{{d_y}^1}_z , 3{{d_x}^1}_z\)