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Cis-trans and Markovnikov (exam) — Major Product
Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for HBr only — school exception named. This page separates the idea from the wider topic “CIS-TRANS AND MARKOVNIKOV (EXAM)” so it can be revised and assessed on its own.
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Cis-trans and Markovnikov (exam) — Major Product
What is it?
Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for HBr only — school exception named. This page separates the idea from the wider topic “CIS-TRANS AND MARKOVNIKOV (EXAM)” so it can be revised and assessed on its own.
In simple words
- Propene + HBr -> 2-bromopropane major.
- H to CH2
- Exam link: Markovnikov named.
Important terms
MAJOR PRODUCT: Propene + HBr -> 2-bromopropane major.
CIS-TRANS AND MARKOVNIKOV (EXAM): Cis-trans: two different groups on each C of C=C.
What you should learn
- Define major product using accurate chemistry terms.
- Explain why major product matters within cis-trans and markovnikov (exam).
- Apply the learning unit to an FBISE-style example, comparison, diagram, or calculation.
Examples
- H to CH2
- Br to middle
- Carbocation reason if taught
KEY IDEA
Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for HBr only — school exception named.
EXAM APPLICATION
Worked propene + HBr: H to the CH2 end (already two H) Br to the middle carbon major name: 2-bromopropane
Recommended for Class 11
Full school-level explanation
Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for HBr only — school exception named. This page separates the idea from the wider topic “CIS-TRANS AND MARKOVNIKOV (EXAM)” so it can be revised and assessed on its own.
Study this learning unit in three steps:
WHAT — CIS-TRANS AND MARKOVNIKOV (EXAM) — MAJOR PRODUCT
Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for HBr only — school exception named. This page separates the idea from the wider topic “CIS-TRANS AND MARKOVNIKOV (EXAM)” so it can be revised and assessed on its own.
WHY — Why this topic matters
CIS-TRANS AND MARKOVNIKOV (EXAM) — MAJOR PRODUCT is an independent FBISE learning unit because students must use its definitions, conditions, equations, or trends separately in explanations and calculations.
HOW — How it works
Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for HBr only — school exception named. Examples: H to CH2; Br to middle; Carbocation reason if taught. Exam use: Worked propene + HBr: H to the CH2 end (already two H) Br to the middle carbon major name: 2-bromopropane
KEY IDEA
Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for HBr only — school exception named.
Remember
- Markovnikov named
Examples
- H to CH2
- Br to middle
- Carbocation reason if taught
EXAM APPLICATION
Worked propene + HBr: H to the CH2 end (already two H) Br to the middle carbon major name: 2-bromopropane
Remember
- 2-bromopropane
Examples
- H to CH2
- Br to middle
- Carbocation reason if taught
Remember
- Markovnikov named
- 2-bromopropane
- Federal Board only
- Markovnikov named
- 2-bromopropane
- Markovnikov named
- independent learning unit
- Markovnikov named
How the ideas connect
Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for HBr only — school exception named. Examples: H to CH2; Br to middle; Carbocation reason if taught. Exam use: Worked propene + HBr: H to the CH2 end (already two H) Br to the middle carbon major name: 2-bromopropane
Deeper understanding
Go beyond memorising Cis-trans and Markovnikov (exam) — Major Product. Connect the definition to reasons, relationships, exceptions, and exam wording.
How the ideas connect
Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for HBr only — school exception named. Examples: H to CH2; Br to middle; Carbocation reason if taught. Exam use: Worked propene + HBr: H to the CH2 end (already two H) Br to the middle carbon major name: 2-bromopropane
Common mistakes
Exam focus
Core idea
WHAT
WHY
HOW
Exam focus
Quick revision
- Markovnikov named
- 2-bromopropane
- Federal Board only
- MAJOR PRODUCT: Propene + HBr -> 2-bromopropane major.
- CIS-TRANS AND MARKOVNIKOV (EXAM): Cis-trans: two different groups on each C of C=C.
- WHAT — CIS-TRANS AND MARKOVNIKOV (EXAM) — MAJOR PRODUCT: Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synt
Federal Board Class 11 Chemistry learning unit. Easy wording; no provincial-board material added.
For long answers on Cis-trans and Markovnikov (exam) — Major Product: define clearly → explain the main parts → give one example → state one exam caution.
Exam Focus
Exam Focus
Important points
- Markovnikov named
- 2-bromopropane
- Federal Board only
- MAJOR PRODUCT: Propene + HBr -> 2-bromopropane major.
Important formulas
- Markovnikov named
- 2-bromopropane
- Federal Board only
Common exam traps
- Do not treat major product as the same as every other part of cis-trans and markovnikov (exam); define this unit and use its own evidence, steps, or conditions.
- Do not memorise a label alone; connect the definition to a process, structure, condition, equation, or example.
Long question structure
Definition → key parts → example → exam caution
Common Mistakes
Common Mistakes
- Mistake
Do not treat major product as the same as every other part of cis-trans and markovnikov (exam); define this unit and use its own evidence, steps, or conditions.
- Mistake
Do not memorise a label alone; connect the definition to a process, structure, condition, equation, or example.
- Mistake
Do not use provincial-board wording or add material outside the Federal Board Class 11 scope.
- Mistake
Federal Board Class 11 Chemistry learning unit. Easy wording; no provincial-board material added.
Revision Zone
60-Second Revision
Quick cues from this topic — use them for last-minute revision.
Markovnikov named
2-bromopropane
Federal Board only
MAJOR PRODUCT: Propene + HBr -> 2-bromopropane major.
Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for
- Definition
- Propene + HBr -> 2-bromopropane major. 1-bromopropane minor. Draw both if the paper asks. Not a synthesis of a solvent stock. Anti-Markovnikov with peroxide for
- Example
- H to CH2
- Critical warning
- Do not treat major product as the same as every other part of cis-trans and markovnikov (exam); define this unit and use
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Exam Practice
Define
Q1. Define Cis-trans and Markovnikov (exam) — Major Product.
Explain
Q2. Explain: KEY IDEA.
Example
Q3. Give one clear example of Cis-trans and Markovnikov (exam) — Major Product and say why it fits.
Mistake
Q4. State one common mistake students make about Cis-trans and Markovnikov (exam) — Major Product.
Exam note
Q5. Write a short exam note on Cis-trans and Markovnikov (exam) — Major Product: definition, two points, one example.
Sources & References
School-standard facts for Matric and Intermediate. Original explanations — not copied from textbooks.