TYBSc Chemistry Sem 6 Inorganic Chemistry Question Paper PDF 2026 - Mumbai University | munotes

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1. Q3 Use of log table non- programmable calculator is allowed 1 Answer any three of the following: crystal field splitting of d-orbitals in octahedral complexes. 05
   • B. What do you mean by crystal field stabilization energy (CFSE)? Calculate CFSE for and configurations in strong field octahedral complexes. 05
   • C. Explain how Nephelauxetic effect supports the presence of covalent bonding in coordination compounds? 05
   • D. Discuss the effect of crystal field splitting on colour and magnetic properties of transition metal
   • E. basis of symmetry considerations, how will you identify the central metal orbitals and ligand orbitals that are suitable for bonding? 05
   • F. labelled molecular orbital energy level diagram for octahedral complex considering only 2 Answer any three of the following :
   • A. Explain-‘Orgel energy diagram of d? configuration is inverse of 05
   • B. Discuss spin selection rule which governs electronic transitions. 05
   • C. Deduce the terms for p* configuration as in carbon atom. 05
   • D. Explain in brief the role of “size and charge of central metal ion” on stability of complexes. 05
   • E. Discuss the base hydrolysis reaction with reference to octahedral complexes of cobalt. 05
   • F. Explain the following 5
   • i) Anation reaction 3 Answer any three of the following :
   • A. Discuss the following chemical reactions of organometallic compounds of main group elements. 05
   • i) Alkylation and arylation
   • ii) Reactions with oxygen and halogens
   • B. With reference to organometallics of elements of main groups, discuss the method of preparation 05
   • i) Oxidative addition
   • ii) Metallation Discuss the structure and bonding of ferrocene. 05
   • D. With reference to ferrocene discuss the following. 05
   • i) Acylation reactions
   • E. is coupling reactions? Explain the mechanism of Heck coupling reaction. 05
   • F. a) Explain the requirements of a good catalyst. 03
   • b) What are organometallic compounds? 02
   • Q.P. Code :03322
2. Q4 Answer any three of the following 5 marks
   • A. Discuss the preparation of nanomaterials by colloidal route method
   • B. With reference to nanomaterials , discuss its 05
   • i) Electrical properties
   • C. Explain the dimensions and different forms of nanomaterials. 05
   • D. Discuss the following radiopharmaceuticals. 05
   • i) Chromium -51 ii)
   • E. Write note on cisplatin in medicinal field. 05
   • F. Both catalase and peroxidase are heme enzymes with different catalytic properties, explain. 05 5 Answer the following: A Select and write the most appropriate answer. 04
   • b. The ligand having strong ability to expand d-electron cloud of metal is
   • i) H20 ii) CN
   • c. planar complexes d-orbitals of central metal split into levels
   • d. The linearly combined ligand orbitals are referred as A State whether the following statements are true or false. 04
   • p. Most of the tetrahedral complexes are high spin complexes
   • q. The difference in energy between and eg orbitals in an octahedral complexes is called crystal field [IrCle]* is ahigh spin octahedral complex
   • s. metal orbital is combined with its matching symmetry ligand group orbital forms one bonding and B Select and write the most appropriate answer. 04
   • a. term F, the number of energy states are
   • i) ii)3 iii) 4
   • b. The number of micro states for configuration is
   • i) ii) 15 iii) 20
   • c. Larger the number of chelate rings, is the stability of the complex
   • d. complexes involving mechanism, the main feature is bond
   • Q.P. Code :03322 B State whether the following statements are true or false. 04
   • p. Charge transfer bands are much more intense compared to d-d transitions
   • q. ‘J’ known as total angular momentum quantum number takes positive values only
   • r. Achelate complex is less stable than its analogous monodentate complex
   • s. Inert complexes undergo ligand substitution in less than one minute C Select and write the most appropriate answer. 04
   • a. Metal or non-metal halides when treated with diazomethane under suitable conditions, methylene insertion takes place in bond
   • i) _ iii) M-M
   • b. In metathesis, organometallic compound when treated with a binary halide, exchange of a formal
   • c. Ferrocene obeys rule and rule
   • d. Heck and Suzuki reactions are
   • ii) In both reactions last step is reductive elimination
   • iii) Both i. and ii C State whether the following statements are true or false. 04
   • p. Organometallic compound, Be(CH3)2 is an electron deficient molecule and is Lewis acid
   • q. Ferrocene is diamagnetic molecule is insoluble in water but readily dissolves in organic solvents like benzene and alcohol
   • s. Homogeneous catalysts are present in the same phase as the reagents D Select and write the most appropriate answer. 03
   • a. nanoparticles are used in air purifiers and water purifier
   • b. Magnetic materials made from nanomaterial are used in analytical instrument like used in
   • ii) sonography
   • iii) X-ray
   • c. Complexes of gold are
   • i) effective against rheumatoid arthritis
   • ii) effective against tooth decay
   • iii) used in killing the cancerous cells D State whether the following statements are true or false. 03
   • p. Nanomaterials are tiny particles of material that have size 1 to 1000 nanometer
   • q. In nanomaterials, surface to bulk atom ratio decreases with decrease in particle size
   • r. The activity of a radioactive isotope is expressed in terms of curie ‘C’

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