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

Questions asked in this paper

• (2) Figures to the right indicate full marks

1. Q1 Answer Any Four of the following:
   • A. any five limitations of valence bond theory as applied to metal-ligand bonding. 5
   • B. the splitting of d orbitals of the central metal atom in square planar 5
   • C. How does crystal field splitting affect hydration energy & enthalpy of formation 5 in transition metal complexes?
   • D. a note on Jahn-Teller distortions with reference to Z-in situation in a 5 complex with octahedral geometry
   • E. is Crystal Field Stabilization Energy (CFSE)? Calculate CFSE for 5 configurations in weak field octahedral complexes
   • F. how Electron Spin Resonance (ESR) spectra help as an evidence for 5 covalence in metal complexes
2. Q2 Answer Any Four of the following:
   • A. Draw a neat labeled molecular orbital diagram for Hexafluoro ferrate ion; 5
   • B. the terms thermodynamic stability & kinetic stability. 5
   • C. What is the role of ‘size & charge of the central metal ion’ on the stability 5 of the complexes
   • D. a note on the Dissociative mechanism for Ligand Substitution Reactions. 5
   • E. Reactions’ with respect to metal complexes. 5
   • F. Discuss ‘Intra ligand electronic transitions’ in coordination compounds. 5
3. Q3 Answer any four of the following:
   • A. Discuss the following two methods of synthesis of organometallic compounds of main group
   • B. Explain the following chemical reactions of organometallic compounds of main group 5
   • (a) reactions with protic reagents
   • (b) reactions with oxygen and halogens Mention the requirements of metal to be a good catalyst. 3
   • (b) Write note on.o bonded covalent organometallic compounds. 2
   • D. Describe the methods of preparation of ferrocene. 5
   • E. Explain: sulphonation and alkylation reactions of ferrocene. 5 F, Explain the mechanism involved in hydrogenation of alkene using Wilkinson’s catalyst. 5
4. Q4 Answer any four of the following:
   • A. Define metallurgy. Write a brief note on the hydrometallurgy. 5
   • B. Explain the following terms by giving examples
   • (a) mineral (b) gangue
   • C. (a) Give an account of the various reactions that takes place in the following process with respect to extraction of copper by pyrometallurgy (any one) 3
   • (b) Discuss the Gravity separation method used for concentrating ores. 2
   • D. Explain: (a) Neon is used in safety devices. 3
   • (b) Helium and neon do not form clathrate compounds
   • E. Give the preparation of the xenon hexafluoride and discuss their structure. 5
   • F. Discuss the role of sodium and potassium ions in biological systems. 5
5. Q5 A.State whether following statements are true or false:- (Any Five) 5 marks
   • (a) Crystal field theory takes into account overlapping of metal and ligand orbitals
   • (c) 10 Dq value in tetrahedral complexes is higher than in square planar complexes
   • (d) CO is a strong field ligand
   • (e) ESR spectrum of straight line
   • (f) In octahedral complexes metal d orbitals are split into two levels
   • (g) In tetrahedral complexes none of the ligands directly approach metal d orbitals
   • (h) is a high spin complex
   • B. Fill in the blanks with appropriate words given in the bracket:- (Any Five) 5
   • (a) On the basis of magnetic behavior, is
   • (b) Reverse of stability constant is
   • (c) Complexes with chelate groups are stable than those with
   • (d) Base hydrolysis reaction with proton abstraction is supposed to take place
   • (e). Transitions which involve a change in the azimuthal quantum number
   • (f) Number of microstates in d configuration is
   • (g) Stability of complexes with bonding capacity of the ligands
   • (C) Select and write the appropriate answers: 5 (Attempt any five)
   • (a) In metathesis, organometallic compound when treated with a binary halide, exchange of a formal Carbanion with a takes place
   • (b) The metal hydrogen exchange reactions are called as reactions
   • (c) metal or nonmetal halides when treated with _ under suitable conditions, methylene insertion takes place in M-Cl bond
   • (i) diazomethane (11) alkyl group (iii) none of the above
   • (e) Condensation of ferrocene rings with formaldehyde and amine is called reaction
   • (g) When the reactants and catalyst are in the same phase, catalysis 1s referred as
   • (h) A catalyst influences the rate of a Chemical reaction but it normally the equilibrium of
   • (i) alters (ii) affects on does not alter
   • (D) State whether the following statements are true or false: 5 (Attempt any five)
   • (a) Copper matte contains sulphides of copper and iron
   • (b) Highly pure Si can be obtained by Zone refining method
   • (c) The gas evolved during roasting of sulphides ore is H2S
   • (d) XeOF, has a square pyramid structure
   • (e) Steric number of is 4
   • (f) The transition element present in hemoglobin is iron
   • (g) To maintain high concentration of ion inside the cell and high concentration of Na outside the cell in the blood plasma an ion pump is developed across the cell membrane

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