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Bachelor’s Degree Programme (BSCG) – ORGANOMETALLICS, BIOINORGANIC CHEMISTRY, POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY Solved Assignment Answer | BCHET 147 | 2021-2022

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Bachelor’s Degree Programme (BSCG) – ORGANOMETALLICS, BIOINORGANIC CHEMISTRY, POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY Solved Assignment Answer | BCHET 147 | 2021-2022

Free BCHET 147 Solved Assignment Answer | ORGANOMETALLICS, BIOINORGANIC CHEMISTRY, POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY | For July 2021 – June 2022

IGNOU BCHET 147 Solved Assignment, This assignment is the curriculum of the BACHELOR’S OF SCIENCE (BSCG) program. For other courses, students check our website categories section to find their courses and assignments over there.

BCHET 147 ORGANOMETALLICS, BIOINORGANIC CHEMISTRY, POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY Solved Assignment 2021-2022

IGNOU BCHET-147 ORGANOMETALLICS, BIOINORGANIC CHEMISTRY, POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY assignment are 100 marks. There are two sections – A and B. Students have to answer all the questions. Download IGNOU BCHET-147 Assignment free without any registration, Students can easily download the IGNOU assignment question paper from the official website of the university. They are not required to pay any fees or charges for this.

Title NameBCHET-147 Solved Assignment 2021-2022 | ORGANOMETALLICS, BIOINORGANIC CHEMISTRY, POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY
UniversityIGNOU
Service TypeSolved Assignment (Soft Copy/Q&A form)
CourseBSCG
LanguageEnglish
SemesterSession: July 2021 – January 2022
Short NameBCHET-147
Assignment CodeBCHET-147/TMA/January 2022
ProductAssignment of BCHET-147 | 2021-2022
Submission DateValid from 1st July 2021 to 30th June 2022
Assignment PdfDownload Now

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The answer of BCHET-147 | ORGANOMETALLICS, BIOINORGANIC CHEMISTRY, POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY | Solved Assignment 2021-2022:

Note: Attempt all questions. The marks for each question are indicated against it.

PART A: ORGANOMETALLICS, BIOINORGANIC CHEMISTRY

1. Give the difference between organometallic and coordination compounds.

2. Give the structure of dimeric trialkylaluminium.

3. What is meant by hapticity regarding organometallic compounds?

4. Explain the structure of Mn2(CO)10 based on valence bond approach.

5. Calculate the total number of electrons for the compound Co2(CO)8.

6. With suitable diagrams explain the polarity of the free CO molecule as well as when it binds with a transition metal cation.

7. Arrange the following in decreasing order of C-O bond lengths giving justifications: Ni(CO)4, [Co(CO)4] , [Fe(CO)4]2-.

8. Give a short account of the essential elements occurring in biological systems.

9. What is the role of magnesium ions in chlorophyll? Discuss.

10. Describe the structure of hemoglobin along with a suitable diagram.

PART B: POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY

11. What are active methylene compounds? Give their two examples. Why are they named so?

12. a) Give the reaction for the following conversions :
i) Furfural to furan
ii) Pyridine to 2-hydroxypyridine
iii) Thiophene to 2,5-dihydrothiophene
b) Give various resonance structures of carbocation formed during the electrophilic substitution of furan

13. a) Why the 1st position of naphthalene is more reactive than the 2nd position? Explain the giving mechanism.
b) What are the different classes of polynuclear hydrocarbons? Explain each of them with suitable examples.

14. a) Compare the basicities of pyrrole and pyridine.
b) Give mechanism of Friedel Crafts acylation of anthracene.

15. With the help of a suitable diagram explain the order of molecular orbital energies observed in small organic molecules.

16. a) Explain the blue shift.
b) Predict the shift in absorption intensity observed in chloroethylene.
CH2=CHCl

17. Give the transitions that are observed in the electronic spectra of the acetylenic and the benzenoid chromophore.

18. Explain the solvent effect on electronic spectra for n  * transitions. In which solvents are they particularly seen?

19. Give the normal modes of vibrations of a triatomic linear and triatomic angular molecule with suitable diagrams

20. Explain the main bands appearing in the IR spectra of alkanes and alkenes. What are the differences in the IR spectra of these two classes of compounds?

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