BSc Sem VI 2022 2023 Apr 2023 CHEMISTRY INORGANIC CHEMISTRY Question Paper - Mumbai University | munotes

Questions asked in this paper

• (2) Figures to the right indicate full marks

1. Q1 Attempt any four of the following:
   • A. What is crystal field splitting? Explain with reference to square planar 5
   • B. Explain why [ Fe is a high spin and [Fe is a low spin 5
   • C. the following with respect to the factors affecting crystal field
   • i] Geometry of the complex 21/2 Nature of the ligands . 21/2
   • D. the term crystal field stabilization energy [CFSE]. 5 Calculate CFSE for and configurations in strong field octahedral
   • E. in brief the merits and demerits of Crystal Field theory. 5
   • F. any two experimental evidences which proves covalent bonding in 5 the metal complexes
2. Q2 Attempt any four of the following: Draw and explain a neat labelled molecular orbital diagram for hexacyano 5
   • B. the effect of bonding on Ap values of octahedral complexes with 5
   • C. What are chelating agents? Discuss their effect on stability of complexes. 5
   • D. Write a note on the Associative mechanism for ligand substitution reaction. 5
   • E. | What is Russell-Saunders (LS) coupling? Explain with suitable example. 5
   • F. Calculate the ground state term for ‘d'’ configuration of Ti ** 3 Explain spin multiplicity for two electrons. 2
3. Q3 Attempt any four of the following: Write a note on ionic organometallic compound. 5
   • B. How will you prepare organometallic compound by Transmetallation 5
   • C. the complex formation reaction for the organometallic compound. 5
   • D. is ferrocene? Explain structure of ferrocene according to valence bond 5
   • E. Discuss homogeneous catalysis with suitable example. 5
   • F. Discuss the following steps involved in hydrogenation of alkene using 5
4. Q4 Attempt any four of the following:
   • A. What is meant by term metallurgy? Explain self-reduction process in 5
   • B. Define roasting. Explain different types of roasting methods used for 5 extraction of ore
   • C. electrolytic refining of copper with suitable diagram. 5
   • D. with suitable diagram Froth floatation process for concentration of 5
   • E. the structure of XeOF, molecules on the basis of VSEPR theory. 5
   • F. Give an account of Na+ - K+ ion pump with suitable diagram. 5
5. Q5 Answer the following:
   • A. Select whether the following statements are true or false (Any five) 5
   • a. Splitting of d - orbitals is maximum in tetrahedral complexes
   • b. Triply degenerate set of dxy, dyz, dxz are called as ty, orbitals
   • c. The value of 10Dq does not depend on the nature of central metal atom
   • d. complexes, due to the crystal field splitting, orbital with maximum energy is
   • e. Inthe absorption spectrum of [Ti one transitions are possible
   • f. In anoctahedral complex, metal ion with d’ configuration has CFSE value
   • g. Electrons prefer to pair up in eg orbital when Ao
   • h. effect of ligands in expanding the d-electron cloud is called Jahn -Teller
   • B. Fill in the blank with appropriate words given in the bracket (Any five ) 5 [weakening, isomerization, unpaired electrons, microstates, even and
   • a. The term gerade corresponds to
   • b. the matching orbitals overlap combines with maximum positive overlap,
   • c. Presence of bulky ligands in a chelate results in of metal ligand
   • d. with forced configurations
   • e. The reactions which involve structural changes are called
   • f. | With respect to octahedral complexes, dissociative mechanism can be considered as step mechanism
   • g. The allowed combinations of and ms for electrons are called
   • h. A transition is said to be spin forbidden, if it involves different number of
   • C. Select and write the appropriate answer . (Any five ) 5
   • a. the example of organometallic compound
   • b. In preparation of organometallic compound by metallation reaction, Hydrogen from R-H is replaced by
   • c. In the complex formation reaction of organometallic compound, organometallic compound acts as
   • d. is the best example of metallocene
   • e. According to valence bond theory, ferrocene is
   • f. is known as Wilkinson’s Catalyst Rh Cl;
   • g. In Homogeneous catalysis, if reactants and products are in gaseous phase then catalyst may be in phase only
   • h. Ferrocene can be prepared by oxidation of cyclopentadienyl Grignard
   • D. Match the column: (Any five ) 5
   • b. |Gangue it. | Calcium deficiency
   • iv. | Used in electronic tubes Krypton-85 Purification of metal
   • g. | Copper Ore

Read from the scan above, so a character or two may differ. The scan is the original.