IGNOU BSCG BCHET 147 Organometallics, Bioinorganic Chemistry, Poly nuclear Hydrocarbons and UV, IR Spectroscopy Solved Assignment English
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BCHET 147: Organometallics, Bioinorganic Chemistry, Poly nuclear Hydrocarbons and UV, IR Spectroscopy
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| Title Name | IGNOU BSCG BCHET 147 Organometallics, Bioinorganic Chemistry, Poly nuclear Hydrocarbons and UV, IR Spectroscopy Solved Assignment English |
|---|---|
| Type | Soft Copy (E-Assignment) .pdf |
| University | IGNOU |
| Degree | BACHELOR DEGREE PROGRAMMES |
| Course Code | BSCG |
| Course Name | Bachelor of Science |
| Subject Code | BCHET 147 |
| Subject Name | Organometallics, Bioinorganic Chemistry, Poly nuclear Hydrocarbons and UV, IR Spectroscopy |
| Year | 2026 |
| Session | - |
| Language | English |
| Assignment Code | BCHET 147/Assignment-1/2026 |
| Product Description | Assignment of BSCG (Bachelor of Science) 2026. Latest BCHET 147 2026 Solved Assignment Solutions |
| Format | Ready-to-Print PDF (.soft copy) |
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BCHET 147 2026 - English
Tutor Marked Assignment
BCHET-147: ORGANOMETALLICS, BIOINORGANIC CHEMISTRY, POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY
Course Code: BCHET-147
Assignment Code: BCHET-147/TMA/2026
Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated against it.
PART A: ORGANOMETALLICS, BIOINORGANIC CHEMISTRY
Based on the image provided, here is the transcribed text:
1. What is the chromyl chloride test? Give suitable equations.
2. Give the structure of dimethyl beryllium.
3. Explain the concept of hapticity with reference to allyl complexes, such as . How does
-coordination differ from
-coordination in terms of bonding and structure?
4. Explain the structure of Fe2(CO)9 based on valence bond approach.
5. How can formation of nitrosyl complexes be formed from carbonyl complexes with the help of nitric oxide? Give three suitable equations to show this.
6. The C-O stretching frequencies in the IR spectra of certain metal carbonyl species are as follows:
The value for CO(g) is . Discuss
7. What information is obtained from the IR spectrum of Fe2(Cp)2(CO)4 given below ?
8. Which metal ion is essential for the process of blood coagulation? Explain the mechanism by which it facilitates clot formation? Give the different ways by which cadmium affects the human body.
9. With the help of a suitable diagram explain the pump. Show how the sodium-potassium pump moves toward an equilibrium state with the relative concentrations.
10. With the help of a suitable diagram, explain the mechanism of oxygen binding in hemoglobin and discuss the structural changes that occur upon formation of oxyhemoglobin.
PART B: POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY
11. How will you prepare 5-hexen-2-one from ethyl 3-oxobutanoate. Give the reactions involved and the reagents used in the reaction.
12. (a) Give IUPAC names of the following compounds.
(b) Is napthalene an aromatic compound? Explain.
13. Give the reaction involved and the reagents used for the commercial preparation of pyrrole.
14. Give the resonance structures for the intermediate in the reaction where electrophile E+ attacks on 2-position of pyridine.
15. What are the differences between Bathochromic shift and Hypsochromic shift?
16. Explain Woodward rules for predicting π − π* absorption in dienes.
17. What sort of shift may be observed in bromobenzene, (C6H5Br)?
18. Explain the Feiser and Scott rules for predicting π − π* absorption in -unsaturated ketones (enones) and aldehydes.
19. With the help of suitable diagrams explain how the IR spectrum is depicted in the absorption mode and the transmittance mode.
20. The IR spectrum of a sample of cyclohexanol is recorded. Which major absorption bands you would be looking for in the spectrum?
BCHET 147 2026 - Hindi
शिक्षक जांच सत्रीय कार्य
BCHET-147: कार्बधात्विक यौगिक, जैव-अकार्बनिक रसायन, बहुनाभिकीय हाइड्रोकार्बन
तथा पराबैंगनी-अवरक्त स्पेक्ट्रमिकी
पाठ्यक्रम कोड : BCHET-147
सत्रीय कार्य कोड : BCHET-147/TMA/2026
अधिकतम अंक : 100
नोट : सभी प्रश्नों के उत्तर दीजिए। प्रश्नों के अंक दायीं ओर कोष्ठक में दिए गए हैं।
भाग क: कार्बधात्विक यौगिक, जैव-अकार्बनिक रसायन
यहाँ आपके द्वारा दी गई दूसरी छवि का लिखित पाठ है:
1. क्रोमिल क्लोराइड परीक्षण क्या है? उपयुक्त अभिक्रिया दीजिए।
2. डाइमेथिल बेरेलियम की संरचना दीजिए।
3. जैसे ऐलिल संकुल के संदर्भ में हैप्टिसिटी की अवधारणा को स्पष्ट कीजिए। आबंधन और संरचना के संदर्भ में
-समन्वय,
-समन्वय से किस प्रकार भिन्न है?
4. संकुल की संरचना को सयोंजकता आबंध दृष्टिकोण से व्याख्या कीजिए।
5. नाइट्रिक ऑक्साइड की सहायता से कार्बोनिल संकुल से नाइट्रोसिल संकुल का निर्माण कैसे हो सकता है? इसे दर्शाने के लिए तीन उपयुक्त समीकरण दीजिए।
6. कुछ धातु कार्बोनिल स्पीशीज़ के स्पेक्ट्रम में
तनन आवृत्तियाँ इस प्रकार हैं:
का मान
दिया गया है। व्याख्या कीजिए।
7. नीचे दिए गए के
स्पेक्ट्रम से क्या सूचना मिलती है?
8. रक्त के थक्के जमने में किस धातु आयन की आवश्यकता होती है, और उस क्रियाविधि की व्याख्या कीजिए जिसके द्वारा यह थक्का बनने में सहायता करता है। वे विभिन्न तरीके बताइए जिनसे कैडमियम मानव शरीर को प्रभावित करता है।
9. पंप (सोडियम-पोटैशियम पंप बाईं और दिखाए गए
-और
की आपेक्षिक सांद्रता के साथ संतुलन अवस्था की ओर बढ़ता है)।
10. उपयुक्त आरेख की सहायता से हीमोग्लोबिन में ऑक्सीजन के आबंधन की क्रियाविधि का विवरण दीजिए और ऑक्सीहीमोग्लोबिन के निर्माण पर होने वाले संरचनात्मक परिवर्तनों पर चर्चा कीजिए।
भाग ख: बहुनाभिकीय हाइड्रोकार्बन तथा पराबैंगनी-अवरक्त स्पेक्ट्रमिकी
11. आप एथिल 3-ऑक्सोब्यूटेनोएट से 5-हैक्सीन-2-ओन किस प्रकार बनाएंगे? इसमें होने वाली अभिक्रियाएँ लिखिए और इसमें उपयोग होने वाले अन्य अभिकर्मकों को भी लिखिए।
12. (क) निम्नलिखित यौगिकों के नाम दीजिए:
(ख) क्या नैफ्थलीन ऐरोमैटिक है? समझाइए।
13. पिरोल के व्यापारिक उत्पादन में शामिल अभिक्रिया और इसमें उपयोग होने वाले अन्य अभिकर्मकों को भी लिखिए।
14. यदि किसी अभिक्रिया में इलेक्ट्रॉनस्नेही पिरिडीन की 2-स्थिति पर आक्रमण करे तो उत्पन्न मध्यवर्ती की अनुनाद संरचनाएँ लिखिए।
15. वर्णोत्कर्षी सृति और वर्णापकर्षी सृति में क्या अंतर है?
16. डाइईनों में अवशोषण की प्रागुक्ति के वुडवर्ड नियम समझाइए।
17. ब्रोमोबेन्जीन में किस प्रकार की सृति प्रेक्षित होते हैं?
18. -असंतृप्त कीटोनों (ईनोनों) और ऐल्डिहाइडों में
अवशोषण की प्रागुक्ति के फीजर-स्कॉट नियम की व्याख्या कीजिए।
19. उपयुक्त आरेखों की सहायता से समझाइए कि अवरक्त स्पेक्ट्रम को अवशोषण विधा और पारगम्यता विधा में कैसे दर्शाया जाता है?
20. साइक्लोहैक्सेनॉल का एक प्रतिदर्श का अवरक्त स्पेक्ट्रम रिकॉर्ड किया गया है। आप उस अवरक्त स्पेक्ट्रम में कौन-से मुख्य अवशोषण बैंडों को ढूंढेंगे?
BCHET 147 2025 - English
Tutor Marked Assignment
BCHET-147: ORGANOMETALLICS, BIOINORGANIC CHEMISTRY, POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY
Course Code: BCHET-147
Assignment Code: BCHET-147/TMA/2025
Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated against it.
PART A: ORGANOMETALLICS, BIOINORGANIC CHEMISTRY
1 Give the IUPAC nomenclature of potassium dichromate. Also give its reaction with potassium iodide in acidic medium.
2 Give the structure of methyl lethium.
3 With the help of suitable equations, give any two methods for preparation of metal carbonyls by reductive carbonylation.
4 Explain the structure of Fe(CO)5 based on valence bond approach.
5 With suitable reactions (any two) explain how carbonyl hydrides are formed by reaction of metal carbonyls with hydrogen.
6 With suitable diagrams explain the polarity of the free CO molecule as well as when it binds with a transition metal cation.
7 What information is obtained from the IR spectrum of Fe2(CO)9?
The IR spectrum of Fe2(CO)9
8 Give a short account of the essential and non essential elements occurring in biological systems. 9 Give the different ways by which lead affects the human body.
10 Explain the conversion of heme to hemin along with a suitable diagram.
PART B: POLYNUCLEAR HYDROCARBONS AND UV, IR SPECTROSCOPY
11 How will you prepare pentan-2-one from ethyl 3-oxobutanoate. Give the reactions involved.
12 (a) Give IUPAC name the following compounds.
(b) Is anthracene aromatic compound? Explain.
13 (a) Among pyridine and pyrrole which one is more basic? Explain
14 In pyridine substitution occur which at the 3 position. Explain.
15 Which are the two main parameters on which the absorption bands in ultraviolet and visible spectra are measured?
16 Explain Woodward rules for predicting x-x* absorption in dienes.
17 Explain with the help of a diagram the orbital energy relationship between isolated and conjugated C=C and C=O groups.
18 For polyatomic molecule, what are the different types of normal modes of vibration? Give the normal modes of vibrations for the symmetric stretching of a triatomic linear and triatomic angular molecule with suitable diagrams.
19 Give the characteristic frequencies of the ketones and aldehydes. How are they different from esters?
20 (a) List the factors affecting the position and intensity of IR bonds in the IR spectrum.
(b) Explain the bands appearing in the IR spectrum of an alkane giving a suitable example.
BCHET 147 2025 - Hindi
शिक्षक जांच सत्रीय कार्य
BCHET-147: कार्बधात्विक यौगिक, जैव-अकार्बनिक रसायन, बहुनाभिकीय हाइड्रोकार्बन तथा पराबैंगनी-अवरक्त स्पेक्ट्रमिकी
पाठ्यक्रम कोड: BCHET-147
सत्रीय कार्य कोड: BCHET-147/TMA/2025
अधिकतम अंक : 100
नोट: सभी प्रश्नों के उत्तर दीजिए। प्रश्नों के समान दायीं ओर कोष्ठक में दिए गए हैं।
भाग कः कार्बधात्विक यौगिक, जैव अकार्बनिक रसायन
1. पोटैशियम डाइक्रोमेट का IUPAC नामकरण कीजिए। आम्लिक माध्यम में पोटैशियम आयोडाइड के साथ उसकी अभिक्रिया भी दीजिए।
2. मेथिल लिथियम की संरचना दीजिए।
3. अपचायी कार्बोनिलन द्वारा धातु कार्बोनिल यौगिक विरचन के लिए कोई भी दो विधियाँ उपयुक्त अभिक्रिया के साथ दीजिए।
4. संकुल Fe (CO)5 की संरचना को सयोंजकता आबंध दृष्टिकोण से व्याख्या कीजिए।
5. उपयुक्त अभिक्रियाएं (कोई दो) देकर हाइड्रोजन का धातु कार्बोनिल के साथ अभिक्रिया से कैसे कार्बोनिल हाइड्राइड बनता है समझाइए।
6. उपयुक्त आरेखों के साथ मुक्त CO अणु की ध्रुवणता की व्याख्या करें और साथ ही जब यह एक संक्रमण धातु धनायन से बंधता है।
7. Fe2(CO)9 के IR स्पेक्ट्रम से क्या सूचना मिलती है?
8.जैविक तंत्र में आवश्यक और गैर-आवश्यक तत्वों का संक्षिप्त विवरण दीजिए।
9.वे विभिन्न तरीके बताइए जिनसे लेड मानव शरीर को प्रभावित करता है।
10. उपयुक्त आरेख के साथ हीम का हीमिन में परिवर्तन का विवरण दीजिए।
भाग खः बहुनाभिकीय हाइड्रोकार्बन तथा पराबैंगनी-अवरक्त स्पेक्ट्रमिकी
11.आप एथिल 3-ऑक्सोब्यूटेनोएट से पेन्टेन-2-ओन किस प्रकार बनाएंगे? इसमें होने वाली अभिक्रियाएँ लिखिए।
12.(क) निम्नलिखित यौगिकों के नाम दीजिएः
(ख) क्या ऐन्ध्रसीन ऐरोमैटिक है? समझाइए।
13.पिरिडीन और पिरोल में कौन अधिक क्षारीय होता है? समझाइए।
14.पिरिडीन में प्रतिस्थापन अभिक्रिया मुख्य रूप से 3 स्थिति पर होता है। समझाइए।
15. वे दो मुख्य प्राचल कौन से हैं जिन पर पराबैंगनी और दृश्य स्पेक्ट्रम में अवशोषण बैंउ मापा जाता है?
16.डाइईनों में - अवशोषण की प्रागुक्ति के वुडवर्ड नियम समझाइए।
17.एक आरेख की सहायता से वियुक्त और संयुग्मित C-C और CO समूहों के बीच कक्षीय ऊर्जा संबंधों की व्याख्या करें।
18.बहुपरमाणुक अणु के लिए विभिन्न सामान्य विधा वाले कम्पन क्या हैं? उपयुक्त आरेखों के साथ त्रिपरमाणुक रैखिक और त्रिपरमाणुक कोणीय अणु के सामान्य कंपन का सममित तनन दीजिए।
19.कीटोन और ऐल्डिहाइड की विशिष्ट आवृत्तियाँ दीजिए। ये एस्टर से किस प्रकार भिन्न हैं?
20.(क) अवरक्त स्पेक्ट्रम में अवरक्त बैंडों की स्थिति और तीव्रता को प्रभावित करने वाले कारकों की सूची बनाइए।
(ख) उचित उदाहरण देते हुए किसी ऐल्केन के अवरक्त स्पेक्ट्रम में प्रदर्शित होने वाले बैंडों की व्याख्या कीजिए।
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Subject: BCHET 147 - Organometallics, Bioinorganic Chemistry, Poly nuclear Hydrocarbons and UV, IR Spectroscopy
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Product Information
| Course Name | Bachelor of Science |
| Course Code | BSCG |
| Subject Code | BCHET 147 |
| Subject | Organometallics, Bioinorganic Chemistry, Poly nuclear Hydrocarbons and UV, IR Spectroscopy |
| Programme | BACHELOR DEGREE PROGRAMMES Courses |
| Language | English |
| Material Type | Solved Assignment – Soft Copy / PDF |
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IGNOU BCHET 147 2026 Solved Assignment
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Important Note for IGNOU Students
Always check the latest assignment questions and submission instructions on the official IGNOU website before preparing and submitting your assignment. Use this solved assignment as a study and reference resource and prepare your own submission according to the applicable IGNOU requirements.
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Latest Curriculum: Materials are prepared with the current IGNOU syllabus and assignment requirements in mind.
Proper Assignment Format: Understand the structure, presentation and answer style generally expected in an IGNOU assignment.
Simple Explanations: Difficult topics are explained in clear and easy-to-understand language.
Exam Preparation: Assignment material can also be useful for revising important concepts before the Term-End Examination.
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These materials are provided as reference study guides. Students should understandthe concepts, follow IGNOU guidelines and prepare their own original assignmentswhere required.
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Open Assignment Question Papers:Select the relevant IGNOU assignment question paper section.
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How to Submit Your IGNOU Assignments
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Complete the Front Page:Enter your Name, Enrollment Number, Programme/Course Code, Subject and Study Centre details correctly.
Offline Submission:If your study centre requires physical submission, submit the assignment as instructed and retain the acknowledgement.
Online Submission:Where online submission is permitted, follow the instructions issued by your Regional Centre or Study Centre. Keep proof of submission for your records.
Tracking Your Assignment Submission Status
After submitting your assignments, students can check whether their assignmentmarks and submission details have been updated through the applicable official IGNOU system.
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Find Assignment Status:Open the assignment-status service applicable to your programme.
Enter Your Details:Provide your Enrollment Number and other requested programme details.
Check the Status:Review the available submission, evaluation and marks information.
A Quick Tip for IGNOU Students
Assignments are an important part of the IGNOU evaluation process. Preparing themcarefully, understanding the questions, following the prescribed format and submittingthem within the applicable deadline can help you stay on track academically.
Smart Study + Proper Preparation + Timely Submission = Better Academic Planning
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