| 111. | 
                                 
                                    What is the co-ordination number of ptn ?
                                 
                            
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                             Answer: 
                                Option (a)  | 
                    
| 112. | 
                                 
                                    Which of the following contains incorrect hybridization ?
                                 
                            
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                             Answer: 
                                Option (c)  | 
                    
| 113. | 
                                 
                                    What is the type of hybridization in Fe(CO)5 ?
                                 
                            
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                             Answer: 
                                Option (a)  | 
                    
| 114. | 
                                 
                                    K4[Ni(CN)4] is tetrahedral. What is the theoretical of its magnetic moment ?
                                 
                            
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                             Answer: 
                                Option (c)  | 
                    
| 115. | 
                                 
                                    For NH4[Cr(NH3)2(CO3)2] primary valency, secondary valency, number of unpaired electron and total number of ions (on ionization) are respectively _____ .
                                 
                            
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                             Answer: 
                                Option (a)  | 
                    
| 116. | 
                                 
                                    What is the geometrical structure of [Co(NH3)6]3+
                                 
                            
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                             Answer: 
                                Option (d)  | 
                    
| 117. | 
                                 
                                    What is the formula of the complex with square planar structure and co-ordination number 4 ?
                                 
                            
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                             Answer: 
                                Option (c)  | 
                    
| 118. | 
                                 
                                    What is the theoretical value of magnetic moment μ, when CN- ligands combine with Fe3+ ion to form a complex ?
                                 
                            
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                             Answer: 
                                Option (a)  | 
                    
| 119. | 
                                 
                                    State respectively the co-ordination number of the metal ion, its oxidation number, number of e- in d-orbitals in [Co(H2O)4SO3] . Cl ?
                                 
                            
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                             Answer: 
                                Option (d)  | 
                    
| 120. | 
                                 
                                    Which of the following octahedral complexes does not show geometrical isomerism ? ( A ansd B are monodentate ligands)
                                 
                            
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                             Answer: 
                                Option (d)  |