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Name of the University : Mahatma Gandhi University
Department : Chemistry
Degree : M Sc Chemistry
Subject Code/Name : AN1C01/AP1C01/ CH1C01/ PH1C01/ POH1C01/Organometallics and Nuclear Chemistry
Sem : I
Website : mgu.ac.in
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/mgu.ac.in/5201-MScChem%20SemI-MQP(1).pdf

Organometallics & Nuclear Chemistry :

(common to all branches of Chemistry )
Model Question Paper :
Time: 3 Hrs
Max. Weight: 30

Related : MGU AN2C08/AP2C08/CH2C08/PH2C08/PO2C08 Molecular Spectroscopy M.Sc Model Question Paper : www.pdfquestion.in/5161.html

Section A :
(Answer any 10 questions. Each question carries a weight of 1)
01. Give the structures of Mn2(Co)10, Co2(CO)6 and Fe2(CO)9.
02. What is isolobal concept? Explain with one example.
03. Give one typical method of synthesis of butadiene complex of transition metals.

04. Compare the sigma and pi bonding abilities of CO and PR3 ligands.
05. Give one evidnce to show that [Co(NH3)6]3+ follow a dissociative mechanism in its substitution reaction.

06. What is meant by hydroformylation reaction or oxo process? Give one example.
07. Give two examples of organometallic condensation polymers based on rigid polyynes.
08. Discuss the classification of micronutrients?

09. What are cytochromes? Give two examples.
10. Explain the role of Carboxy Peptidise A in the synthesis of proteins.
11. What are the general features of enzymes? What is an apoenzyme?

12. Write down the criteria for a spontaneous nuclear reaction to occur.
13. Explain the synthesis of transuranic elements Curium, Berkelium, Einsteinium and Lawrencium. (10 x 1 =10)

Section B :
(Answer 5 questions. Each question carries a weight of 2)
14. What are metal carbynes? How these will be synthesized?
15. Discuss the structure and bonding in Ferrocene.

16. What is the difference between oxidative addition and insertion reactions with suitable examples?
17. What are p-acceptor ligands? Discuss in detail the nature of bonding involved in metal carbonyls.

18. Describe the Wacker Process for the synthesis of Acetaldehyde.
19. What are organometallic dendrimers. How they are prepared?
20. Explain the function of PSII in photosynthesis.

21. Explain the principles underlying the various types of counters used in radioactive counting. (5 x 2 =10)

Section C :
(Answer any 2 questions. Each question carries a weight of 5)
22. (a) Discuss briefly the mechanism of ligand displacement reaction in octahedral complexes.
(b) Explain clearly LNCCS and HNCCS.

23. Write briefly on
(a) Catalysis by Platinum pop photodehydrogenation catalyst in the conversion of secondary alcohols to ketones.
(b) fluxional isomerism.

24. (a) Give an account of iron storage and transport in biological systems.
(b) Explain how cytochrome P-450 enzymes catalyse the addition of oxygen to a hydrocarbon substrate.

25. Write briefly on
( a) Analytical applications of radioisotopes.
(b) Radiochemistry of water and aqueous solutions. (2 x 5 =10)

Model Question Paper :
V Semester B.Sc Physics Examination :
PH5B02U Physical Optics And Photonics :
Instructions :
1. Time allotted for the examination is three hours
2. Answer all questions in part-A. This contains 4 bunches of 4 objective type questions. For each bunch, Grade A will be awarded if all the 4 answers are correct, B for 3, C for 2, D for 1 and E for 0.Answer any 5 questions from part B, any 4 from part C and any 2 from part D
3. Candidates can use non programmable scientific calculator

Part A : (Objective type-weight 1 each)
Bunch I :
Choose the correct answer.
1. If white light is used instead of monochromatic light to form Newton’s rings due to reflected light, the center will be
(a) dark (b) bright (c) colored (d) uniform illumination throughout

2.In a zone plate,
(a) the radii of the zones are proportional to squares of natural numbers.
(b) the even numbered zones are transparent.
(c) the odd numbered zones are opaque to light
(d) the radii of the zones are proportional to square root of natural numbers.

3. In double refraction
(a) o-ray and e- ray travels with different velocity along the optic axis.
(b) the velocity of the e- ray is maximum along the optic axis in positive crystals.
(c) the o-ray travels slower than e-ray in all directions except along the optic axis.
(d) the principal refractive index for o-ray is larger than the principal refractive index for e-ray in positive crystals.

4. If n1 is the refractive index of core n2 is the refractive index of cladding, the numerical aperture is given by
(a) n1 + n2 (b) n1 – n2 (c) ( n1 – n2 )2 (d) (n1 2 – n2 2 )1/2