CHE 06 Solved Guess Paper is the file most Organic Reaction Mechanism students come looking for about three weeks before the term-end exam, when the four blocks are still unread and the mechanism arrows still look like decoration.
CHE-06 is a chemistry elective under IGNOU's older B.Sc. and Bachelor's Degree Programme structure, and it is a paper where knowing the reaction is never enough. The examiner wants the steps. This page shows exactly what our 2026 file contains, with five complete questions opened up so you can judge the answers yourself.
Organic Reaction Mechanism is a 50-mark paper that punishes vague writing. Write "aldol condensation gives crotonaldehyde" and you get two marks. Write the enolate formation, the nucleophilic attack, the protonation and the dehydration, with the intermediate named at each stage, and you get the full five. Our answers are built in that second shape, question after question.
CHE 06 Organic Reaction Mechanism at a glance
- Course code and title: CHE-06, Organic Reaction Mechanism
- Programme: B.Sc. / Bachelor's Degree Programme (BDP), Chemistry elective, School of Sciences
- Course structure: 4 blocks, 16 units
- Term-end exam: 50 marks, 2 hours
- Weightage split: assignment 30 per cent, term-end exam 70 per cent
- Questions in our file: 12 solved questions across 23 pages
- Open on this page: 5 complete questions with answers
- Papers analysed: 5 term-end sessions, December 2023 to December 2025
- Target session: December 2026 term-end exam
1. What you get inside the CHE 06 Organic Reaction Mechanism file
You get 12 solved questions spread over 23 pages, each mapped to its block and its last-appeared session. The file is not a question bank and it is not a summary of the units. It is written as twelve model answers, in the register you are expected to reproduce on exam day.
Every question in the file follows the same internal shape. First the question is printed in IGNOU's own phrasing, with the 5 + 5 mark split shown. Then comes a short definition block, set apart, because examiners look for the standard definition before they look at anything else. Then the mechanism, numbered step by step. Then the products, named in IUPAC form and in the common form students recognise. A two-line conclusion closes each answer.
Three things are deliberately included that most material floating around online leaves out. Reagents and conditions are written on the arrow, not below it. Intermediates are labelled where they form, so the examiner can follow the electron flow without guessing.
The third is the reason line. Every ordering question in the file carries its justification, because on this paper an order without a reason earns roughly half the marks. If you are collecting material across several papers this session, our IGNOU Solved Guess Paper section lists the other course codes we have already covered.
2. Five sample questions with answers from the CHE 06 Organic Reaction Mechanism guess paper
Five of the twelve questions are reproduced below in full, exactly as they appear in the PDF. We are not showing trimmed versions. Read one, read the mechanism steps, and decide for yourself whether the remaining seven are worth the price.
Aldol condensation
Question: (a) Explain the mechanism of aldol condensation taking acetaldehyde as an example. (b) Complete the reaction CHβCOCHβ + CHβCHO with NaOH. Name the reaction and write the product, including the dehydrated Ξ±,Ξ²-unsaturated carbonyl product. (5 + 5)
Answer, part (a). Aldol condensation is a reaction of aldehydes or ketones carrying an Ξ±-hydrogen, in the presence of dilute alkali. Two molecules combine to give a Ξ²-hydroxy carbonyl compound, which on heating loses water and gives an Ξ±,Ξ²-unsaturated carbonyl compound.
Overall reaction: 2 CHβCHO β (dil. NaOH) CHβCH(OH)CHβCHO β (Ξ) CHβCH=CHCHO + HβO
- Enolate formation. OHβ» removes one Ξ±-hydrogen from acetaldehyde to give β»CHβCHO, the nucleophile.
- Nucleophilic attack. The enolate attacks the carbonyl carbon of a second CHβCHO molecule, forming a new carbon to carbon bond and giving CHβCH(Oβ»)CHβCHO.
- Protonation. The alkoxide picks up HβΊ from water to give CHβCH(OH)CHβCHO, that is 3-hydroxybutanal.
- Dehydration. On heating, the Ξ²-hydroxy aldehyde loses water to give CHβCH=CHCHO, crotonaldehyde.
Answer, part (b). This is a cross aldol condensation. Acetone carries the Ξ±-hydrogen and acts as the nucleophile, acetaldehyde acts as the electrophile. NaOH removes an Ξ±-hydrogen from acetone giving CHβCOCHββ», which attacks the carbonyl carbon of acetaldehyde. Protonation gives CHβCOCHβCH(OH)CHβ, that is 4-hydroxypentan-2-one. On heating, dehydration gives CHβCOCH=CHCHβ, pent-3-en-2-one.
Conclusion. Aldol condensation needs an Ξ±-hydrogen and a dilute base. It produces a Ξ²-hydroxy carbonyl compound that dehydrates on heating. Cross aldol works cleanly when one partner has an Ξ±-hydrogen and the other does not.
Diels-Alder reaction and pericyclic reactions
Question: (a) What are pericyclic reactions? Name the different types with one example of each. (b) Discuss the Diels-Alder reaction. Write the products when 1,3-butadiene reacts with (i) ethene and (ii) maleic anhydride. Explain why the photo-induced [2+2] cycloaddition is symmetry-allowed but the thermal [2+2] is not. (5 + 5)
Answer, part (a). Pericyclic reactions are concerted reactions that proceed through a cyclic transition state in a single step, without intermediates. All bond breaking and bond forming happens at the same time, and the outcome is governed by orbital symmetry.
Key features: no intermediates, a cyclic transition state, redistribution of Ο and Ο electrons, and control by molecular orbital symmetry. The three main types are:
- Cycloaddition. Two unsaturated molecules combine to form a ring. Example: Diels-Alder, 1,3-butadiene plus ethene giving cyclohexene.
- Electrocyclic. Intramolecular ring closing or opening of a conjugated system. Example: 1,3-butadiene to cyclobutene under hΞ½.
- Sigmatropic rearrangement. Migration of a Ο-bond with a simultaneous Ο-electron shift. Example: Cope rearrangement of 1,5-hexadiene.
Answer, part (b). The Diels-Alder reaction is a [4+2] cycloaddition between a diene (4Ο) and a dienophile (2Ο), giving a six-membered ring by a concerted mechanism. With ethene the product is cyclohexene. With maleic anhydride the product is cis-4-cyclohexene-1,2-dicarboxylic anhydride, with the endo adduct preferred and the cis stereochemistry of maleic anhydride retained.
In the thermal [2+2], both reactants are in the ground state, the HOMO and LUMO symmetries do not match, the overlap is destructive and the reaction is symmetry-forbidden. Under light, one electron is promoted to an excited state, the new HOMO now matches the LUMO of the partner, the overlap is constructive and the reaction becomes symmetry-allowed.
Markovnikov and anti-Markovnikov addition of HBr
Question: (a) What is the main product when propene reacts with HBr in the presence of peroxide? Discuss the mechanism in detail. (b) State Markovnikov's rule and explain the addition of HBr to propene without peroxide using the carbocation mechanism. (5 + 5)
Answer, part (a). With peroxide present, HBr adds to an unsymmetrical alkene so that hydrogen goes to the more substituted carbon and bromine to the less substituted carbon, the opposite of Markovnikov's rule. This is the peroxide effect, also called the Kharasch effect, and it runs through a free-radical chain. Propene gives 1-bromopropane.
- Initiation. RβOβOβR breaks to give 2 ROβ’, then ROβ’ + HBr gives ROH + Brβ’.
- Propagation. Brβ’ adds to the terminal CHβ of propene, giving the more stable secondary carbon radical CHββCβ’HβCHβBr. This radical abstracts hydrogen from HBr, giving CHβCHβCHβBr and regenerating Brβ’.
- Termination. Two Brβ’ combine to give Brβ, and radical to radical coupling stops the chain.
Answer, part (b). Markovnikov's rule states that when an unsymmetrical reagent such as HX adds to an unsymmetrical alkene, the hydrogen attaches to the carbon already carrying more hydrogen atoms and the halogen to the carbon carrying fewer. Without peroxide, HβΊ from HBr adds to the terminal CHβ giving the secondary carbocation CHββCβΊHβCHβ, which is stabilised by hyperconjugation and the inductive effect. Brβ» then attacks, giving 2-bromopropane.
Conclusion. Without peroxide the route is ionic and gives 2-bromopropane. With peroxide the route is a radical chain and gives 1-bromopropane. The peroxide effect is seen only with HBr, because the HβCl bond is too strong and the HβI bond too weak.
Hofmann bromamide and Curtius rearrangements
Question: (a) Discuss the mechanism of the Hofmann bromamide reaction. Convert benzamide to aniline. (b) Write a short note on the Curtius rearrangement, showing how acid chlorides can be converted to amines by this route. (5 + 5)
Answer, part (a). The Hofmann bromamide reaction converts a primary amide into a primary amine with one carbon less, on treatment with bromine in aqueous alkali. The overall equation is RβCONHβ + Brβ + 4 NaOH β RβNHβ + NaβCOβ + 2 NaBr + 2 HβO.
- Bromination of the amide gives the N-bromoamide, RβCONHBr.
- Base removes the second NβH to give RβCONβ»Br.
- In the key step, the R group migrates from the carbonyl carbon to nitrogen with loss of Brβ», giving the isocyanate RβN=C=O.
- Hydrolysis of the isocyanate gives the unstable carbamic acid RβNHCOOH.
- Decarboxylation gives RβNHβ and COβ.
For the conversion asked: benzamide gives N-bromobenzamide, then phenyl isocyanate, then carbamic acid, then aniline with loss of COβ.
Answer, part (b). The Curtius rearrangement converts an acid chloride, through the acyl azide, into a primary amine with one carbon less. RβCOCl with NaNβ gives RβCONβ. On heating, nitrogen is expelled and R migrates from carbon to nitrogen giving the isocyanate, and loss of Nβ makes this step irreversible. Hydrolysis and decarboxylation then give RβNHβ. Benzoyl chloride gives aniline by this route.
Conclusion. Both reactions share the isocyanate intermediate and both shorten the chain by one carbon. Curtius is the choice where the substrate cannot survive strong base.
Carbocation stability and SN1 reactivity
Question: (a) Arrange the following in order of decreasing stability with reasons: (CβHβ )βCβΊ, (CβHβ )βCHβΊ, CβHβ CHββΊ. (b) Arrange in order of increasing SN1 reactivity with reasons: (i) (CHβ)βCCl (ii) CβHβ C(CHβ)βCl (iii) CHβCHβCHClCHβ. (5 + 5)
Answer, part (a). The stability order is (CβHβ )βCβΊ > (CβHβ )βCHβΊ > CβHβ CHββΊ. Each phenyl ring delocalises the positive charge by resonance, so the more rings attached to the cationic carbon, the more resonance structures available and the lower the energy of the cation. The benzyl cation spreads the charge over one ring, the diphenylmethyl cation over two, and the triphenylmethyl cation over three. The trityl cation is stable enough to be isolated as a salt.
Answer, part (b). The reactivity order is CHβCHβCHClCHβ < (CHβ)βCCl < CβHβ C(CHβ)βCl, because the SN1 rate follows carbocation stability. Sec-butyl chloride gives a secondary cation stabilised only by hyperconjugation and the inductive effect, so it is slowest. Tert-butyl chloride gives a tertiary cation with three methyl groups donating electrons. Cumyl chloride gives a tertiary benzylic cation stabilised by resonance into the ring as well as by two methyl groups, so it reacts fastest.
Conclusion. Stability is governed by resonance first, then hyperconjugation, then the inductive effect. SN1 reactivity mirrors the stability of the intermediate cation exactly.
Seven more questions are inside the paid file. They cover acetoacetic ester and malonic ester synthesis, Grignard conversions, electrophilic aromatic substitution with nitration of benzene, Saytzeff's rule with E1 and E2, soaps and detergents with micelle formation, polymers including PET and the thermoplastic versus thermosetting comparison, and drugs and dyes. Five shown here, seven in the file, twelve in total.
3. How this CHE 06 Organic Reaction Mechanism guess paper was built
Five term-end papers from December 2023 to December 2025 were read question by question, then scored on three signals. Frequency, recency and gap. Nothing in the file was chosen because it looked important in the textbook.
Frequency is the obvious one. Grignard conversions and Diels-Alder appear in every single session we read, which puts them at the top of any sensible list. Recency matters more than most students realise, because IGNOU paper setters tend to rotate within a two-year window rather than across a decade. Gap analysis is the third signal and it is the one that pays. Acetoacetic ester synthesis appeared in four straight sessions and then went quiet in December 2025, which usually means it is due back.
Students search for this file under several names. Some type CHE 06 Important Questions, some type IGNOU CHE 06 Guess Paper, and a few look for Organic Reaction Mechanism Important Questions. It is the same document, and the label matters far less than whether the twelve topics inside it were chosen from evidence.
The frequency table at the back of the file shows all of this openly. Thirty-six topics, five session columns, a tick or a dash in each cell, and a priority tag. You can disagree with our priorities and build your own plan from the same table. If you want to run the same exercise yourself before trusting anyone's list, start with the official papers in our IGNOU Previous Year Question Paper collection.
Two honest limits. First, a guess paper is a probability exercise and not a leak, so treat these twelve questions as your highest-return revision, not as the whole paper. Second, the frequency work stops at December 2025, so if you are sitting a later session, read the most recent paper yourself and add it to the table.
4. CHE 06 Organic Reaction Mechanism syllabus, blocks and units
CHE-06 runs across four blocks and sixteen units, and the guess paper pulls from every one of them. The block titles below are as listed on IGNOU's own eGyanKosh repository.
| Block | Units | Core content | What it contributes to the 12 questions |
|---|---|---|---|
| Block 1: Basic Concepts and Substitutions | Units 1 to 4 | Reaction Mechanism (an introduction), Kinetics and Mechanism of Reactions, Aliphatic Nucleophilic Substitution, Aromatic Electrophilic Substitution. Bond heterolysis and homolysis, nucleophiles against electrophiles, basicity against nucleophilicity, SN1, SN2, SNi, neighbouring group participation, aromaticity and Huckel's rule, nitration and Friedel-Crafts. | Two questions. The nitration of benzene mechanism with the toluene against nitrobenzene reactivity comparison, and the carbocation stability plus SN1 ordering question. |
| Block 2: Addition and Elimination | Units 5 to 8 | Addition to carbon to carbon multiple bonds, addition to carbonyl compounds, elimination reactions, and Oxidation and Reduction (Unit 8). Markovnikov and peroxide effect, hydroboration, aldol and Claisen condensation, E1 against E2, Saytzeff orientation, ozonolysis, Cannizzaro. | Three questions. Aldol condensation with the cross aldol part, HBr addition with and without peroxide, and Saytzeff's rule with the tert-butyl bromide E1 case. |
| Block 3: Reaction Intermediates and Molecular Rearrangements | Units 9 to 12 | Reactive intermediates including carbenes, nitrenes and benzynes, Free Radicals (Unit 10), molecular rearrangements, and pericyclic reactions. Hofmann and Curtius, Pinacol-Pinacolone, Wagner-Meerwein, NBS bromination, Diels-Alder, electrocyclic and sigmatropic shifts. | Three questions. Pericyclic reactions with Diels-Alder, the Hofmann and Curtius pair, and the Grignard organometallic question. |
| Block 4: Photochemistry and Synthetic Methods | Units 13 to 16 | Organic Photochemistry (Unit 13), Strategy of Organic Synthesis (Unit 14), Case Study of Some Chemicals of Daily Use parts one and two (Units 15 and 16). Jablonski diagram, Norrish type I and II, Paterno-Buchi, retrosynthesis, acetoacetic and malonic ester routes, polymers, soaps, detergents, drugs and dyes. | Four questions. Acetoacetic and malonic ester synthesis, soaps and detergents with micelle formation, polymers with PET, and the drugs and dyes classification question. |
One structural point worth knowing before you plan revision. Block 4 is the block most students skip, because photochemistry looks frightening and the case-study units look like general knowledge. That is a mistake on this paper.
Four of our twelve questions sit in Block 4, and three of them are the easiest ten marks in the file, since soaps, polymers and dyes need almost no mechanism drawing. If you are also hunting for unit summaries and reference notes, our CHE 06 Study Material page is where the unit-wise notes sit.
5. CHE 06 Organic Reaction Mechanism exam pattern and time management
CHE-06 is a 50-mark term-end paper written in 2 hours, and the assignment carries a further 30 per cent of your final result. That split is the single most useful fact on this page, because it changes how you should spend the next three weeks.
Thirty per cent of your grade is already decided by the tutor-marked assignment, which is worth 100 marks and is based on all four blocks. Students who submit a solid assignment walk into the exam hall needing far less from the paper itself. Students who skipped it need close to a clean sheet on the term-end exam, which on an organic mechanism paper is not a comfortable place to be.
Inside the two hours, budget by mark value rather than by comfort. A 5-mark part deserves about 150 words with one mechanism or one balanced equation. A 10-mark question deserves about 250 words. That leaves roughly twenty minutes at the end, which you should spend going back and adding the reason lines under your ordering answers, because that is where the cheapest recoverable marks live.
Cross-check the question split and the choice pattern against your own hall ticket and the most recent paper, since IGNOU revises question structure from time to time.
6. Question-wise coverage map of the CHE 06 Solved Guess Paper
All twelve questions, with the block they sit in, the priority tag and the session each topic last appeared in. Five are open on this page and seven come with the paid file. Treat this table as your working list of IGNOU CHE 06 Important Questions for the coming session.
| No. | Question topic | Block | Priority | Last appeared | Status |
|---|---|---|---|---|---|
| 1 | Aldol condensation mechanism and cross aldol with acetone and acetaldehyde | Block 2 | High | December 2025 | Open above |
| 2 | Pericyclic reaction types and Diels-Alder with the [2+2] symmetry argument | Block 3 | High | December 2025 | Open above |
| 3 | Acetoacetic ester route to methyl ketones and malonic ester route to acids | Block 4 | High | June 2025 | In the file |
| 4 | Grignard conversions to secondary and tertiary alcohols, with product prediction | Block 3 | High | December 2025 | In the file |
| 5 | HBr addition to propene with and without peroxide, both mechanisms | Block 2 | High | December 2025 | Open above |
| 6 | Nitration of benzene and why toluene beats nitrobenzene in EAS | Block 1 | High | December 2025 | In the file |
| 7 | Hofmann bromamide and Curtius rearrangement, benzamide to aniline | Block 3 | High | December 2025 | Open above |
| 8 | Saytzeff's rule, dehydrohalogenation of 2-bromobutane, E1 against E2 | Block 2 | Medium | December 2025 | In the file |
| 9 | Soaps against synthetic detergents, hard water scum and micelle formation | Block 4 | High | December 2025 | In the file |
| 10 | PET preparation, condensation polymerisation, thermoplastic against thermoset | Block 4 | High | December 2025 | In the file |
| 11 | Trityl, benzhydryl and benzyl cation stability with SN1 reactivity ordering | Block 1 | High | December 2025 | Open above |
| 12 | Drug classes with examples and classification of dyes by application method | Block 4 | High | June 2025 | In the file |
7. CHE 06 practical position and the mechanism-drawing index for Organic Reaction Mechanism
CHE-06 is a theory course and has no practical file of its own. Laboratory work in the B.Sc. chemistry elective stream is assessed separately through the Chemistry Lab courses listed by IGNOU as CHE-3L, CHE-7L, CHE-8L, CHE-11L and CHE-12L. If a study centre has asked you for a CHE-06 practical file, check the course code again, because what they usually need is a lab record for one of those laboratory courses.
What CHE-06 does have, in place of a practical file, is a drawing requirement. Nearly every ten-mark answer needs something drawn by hand. Treat the list below as your practical index for this paper and tick each row off as you learn to draw it from memory.
| What you must be able to draw | Where it is used | Common mistake that costs marks |
|---|---|---|
| Curved arrows from the electron source to the electron sink | Every substitution, addition and elimination answer | Drawing the arrow from the atom instead of from the lone pair or the bond |
| Enolate ion with the charge shown on carbon and oxygen | Aldol, Claisen, acetoacetic and malonic ester answers | Showing only one resonance form, which hides why the Ξ±-hydrogen is acidic |
| Arenium ion with the positive charge delocalised over ortho and para carbons | Nitration, halogenation, Friedel-Crafts | Drawing one resonance structure and not marking the loss of aromaticity |
| SN2 transition state with the nucleophile and leaving group at 180 degrees | Aliphatic nucleophilic substitution | Forgetting the square brackets and the double dagger on the transition state |
| Anti-periplanar arrangement of the Ξ²-hydrogen and the leaving group | E2 elimination and Saytzeff questions | Writing E2 as concerted without drawing the geometry that makes it concerted |
| Labelled micelle with hydrophobic tails inward and ionic heads outward | Soaps and detergents cleansing action | Drawing the circle but not labelling the grease core or the charged surface |
| Jablonski diagram with singlet and triplet levels and the crossing routes | Photochemistry questions from Block 4 | Mixing up fluorescence and phosphorescence arrows |
| Repeating unit of a polymer inside square brackets with the subscript n | PET, Nylon-6,6 and condensation polymerisation | Writing the monomers and stopping before the repeating unit |
| Potential energy diagram with the intermediate shown as a well | Kinetics, thermodynamic against kinetic control | Drawing a single hump for a reaction that has an intermediate |
8. Who should buy this CHE 06 Organic Reaction Mechanism guess paper
Anyone registered for CHE-06 under IGNOU's older B.Sc. or Bachelor's Degree Programme structure. The course sits in the Chemistry elective basket of the School of Sciences, which means it reaches students from more than one programme.
- B.Sc. (Bachelor of Science), old scheme, and BDP (Bachelor's Degree Programme). This is the main group. CHE-06 is a core chemistry elective for students who chose the old B.Sc. major track or the general track.
- B.A. and B.Com. students in the elective category. Under the older BDP credit structure, students from other streams could also opt for this course to complete their elective credit requirement, which is why we regularly get enquiries from commerce students sitting an organic chemistry paper.
The file also suits two smaller groups. Re-appearing students who cleared the assignment but failed the term-end exam, because the twelve questions are exactly the repeat-prone set. And students who took chemistry electives to meet the laboratory credit rule and now need the theory paper cleared without rebuilding their organic chemistry from scratch. Students collecting material across several chemistry codes usually take the full B.Sc. Guess Paper set rather than single files.
9. What to skip and what costs marks in CHE 06 Organic Reaction Mechanism
The fastest way to lose marks on this paper is not ignorance, it is writing a correct answer in the wrong shape. Four habits account for most of the damage we see in student scripts.
Writing the name of a compound where a structure was asked for is the first. If the question says write the product, draw it. The second is giving a stability or reactivity order without a reason, which earns roughly half marks in every instance. The third is stating that a reaction is concerted without drawing the transition state that proves it. The fourth is answering a mechanism question as a paragraph, when the examiner is scanning for numbered steps.
On the skip side, be ruthless. Exotic name reactions that have not appeared in the sessions we analysed, such as Beckmann, Hofmann-Loffler and Bouveault-Blanc, are not worth your remaining hours. Molecular orbital theory beyond Huckel's rule is beyond what is asked. Industrial polymer manufacturing detail and long drug syntheses need a one-line example and nothing more. Norrish type I and II in full detail can go, since only the basic concept is examined.
You can check every one of these claims against the official course material yourself. The full CHE-06 study material is hosted openly on IGNOU's eGyanKosh repository, and the current tutor-marked assignment sits on the IGNOU assignment portal.
10. How to get the complete CHE 06 Solved Guess Paper
Send one WhatsApp message on 9899436384 with your course code and the session you are appearing for, and we will send the file details. The complete IGNOU CHE 06 Solved Guess Paper goes out as a single PDF. No account, no form, no waiting queue.
Tell us three things in the first message. Your course code, which is CHE-06. The session you are sitting, which for most students reading this is the December 2026 term-end exam. And whether you also need the assignment solution, since students who have not submitted their tutor-marked assignment are usually better off fixing that first, given it carries 30 per cent of the final result.
The file arrives as a single PDF of 23 pages. It opens on any phone, it prints cleanly on A4, and the twelve answers are in the order shown in the coverage table above. If something in the file is unclear once you start revising, message the same number and ask. We answer mechanism doubts for students who have bought the file.
11. FAQ on the CHE 06 Organic Reaction Mechanism guess paper
What is included in the CHE 06 Organic Reaction Mechanism solved guess paper for 2026?
The file contains 12 solved questions across 23 pages, covering all four blocks of CHE-06. Each question carries the IGNOU-style phrasing, a standard definition, a numbered mechanism, the named products and a short conclusion. A session-wise frequency table of 36 topics is included at the back, along with a priority tag on every question so you know what to revise first.
Is this CHE 06 guess paper enough to pass Organic Reaction Mechanism?
For most students, covering these 12 questions properly is enough to attempt the paper with confidence, because they are the repeat-prone topics across five sessions. It is a focused revision plan, not a replacement for the IGNOU study material. Remember that the tutor-marked assignment carries 30 per cent of your result, so the guess paper only works on the exam side of your grade.
How was the CHE 06 Organic Reaction Mechanism guess paper prepared?
Five term-end papers from December 2023 to December 2025 were read question by question and scored on three signals. Frequency tells us what repeats, recency tells us what the current paper setter favours, and gap analysis tells us what has gone quiet and is due back. The 12 questions are the topics that scored highest across all three signals, mapped block by block.
Which programmes can use this CHE 06 Organic Reaction Mechanism guess paper?
It suits students registered for CHE-06 under the older B.Sc. structure and under the Bachelor's Degree Programme, where it is a core chemistry elective on the old major and general tracks. Under the older BDP credit structure, B.A. and B.Com. students who picked this course to complete their elective credit requirement can use the same file without any change.
Does the CHE 06 Organic Reaction Mechanism guess paper cover all four blocks?
Yes. Two questions come from Block 1 on basic concepts and substitutions, three from Block 2 on addition and elimination, three from Block 3 on reaction intermediates and molecular rearrangements, and four from Block 4 on photochemistry and synthetic methods. Block 4 carries the largest share because soaps, polymers and dyes repeat often and need very little mechanism drawing.
Is there a practical file for CHE 06 Organic Reaction Mechanism?
No. CHE-06 is a theory course with no practical component of its own. Laboratory work in the chemistry elective stream is assessed through the separate Chemistry Lab courses, which IGNOU lists as CHE-3L, CHE-7L, CHE-8L, CHE-11L and CHE-12L. If your study centre has asked for a practical file, check which lab course code you are actually registered under.
In which language is the CHE 06 Organic Reaction Mechanism solved guess paper written?
The answers are written in simple, exam-ready English, with the chemistry terms kept in the exact form IGNOU uses in the study material. Sentences are kept short deliberately, so that students who find organic chemistry difficult can follow each mechanism step without rereading. Structures, equations and reagent conditions are shown in standard notation that works in either medium.
How do I get the complete CHE 06 Organic Reaction Mechanism solved guess paper?
Send a WhatsApp message to 9899436384 with your course code and the session you are appearing for. We will share the file details and send the PDF once your order is confirmed. The five sample questions on this page are complete answers from the same file, so you can check the depth and the formatting before you decide to buy anything.