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Q. No.The geometry and magnetic behaviour of the complex [Ni(CO)4] respectively are:
1. Square planar and diamagnetic
2. Tetrahedral and diamagnetic
3. Square planar and paramagnetic
4. Tetrahedral and paramagnetic
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following has the longest C —O bond length? (Free C—O bond length in CO is 1.128 
2. [Fe(CO)4]2-
3. Mn(CO)6]+
4. Ni(CO)4
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following has longest C —O bond length? (Free C—O bond length in CO is 1.128 
2. [Fe(CO)4]2-
3. Mn(CO)6]+
4. Ni(CO)4
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIron carbonyl, is:
1. Tetranuclear
2. Mononuclear
3. Trinuclear
4. Dinuclear
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology2. Coordination isomerism
3. Ionization isomerism
4. Linkage isomerism
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPick out the correct statement with respect to [Mn(CN)6]3-
1. It is sp3d2 hybridised and tetrahedral
2. It is d2sp3 hybridised and octahedral
3. It is dsp2 hybridised and square planar
4. It is sp3d2 hybridised and octahedral
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyJahn-Teller effect is not observed in high spin complexes of
1. d7
2. d8
3. d4
4. d9
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct increasing order of trans-effect of the following species is
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is the correct increasing order for the wavelengths of absorption in complexes of Co3+?
1. [Co(H2O)6]3+ < [Co(en)3]3+ < [Co(NH3)6]3 +
2. [Co(H2O)6]3+ < [Co(NH3)6]3+ < [Co(en)3]3+
3. [Co(NH3)6]3+ < [Co(en)3]3+ < [Co(H2O)6]3+
4. [Co(en)3]3+ < [Co(NH3)6]3+ < [Co(H2O)6]3+
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn example of a sigma bonded organometallic compound is:
1. Grignard's reagent
2. Ferrocene
3. Cobaltocene
4. Ruthenocene
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
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