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Haloalkanes and Haloarenes — Formula Sheet

ICSE · Class 12 · Chemistry

13 formulas from Haloalkanes and Haloarenes (ICSE Class 12 Chemistry) on one page, grouped by topic. Part of the ICSE Class 12 Chemistry syllabus.

104 questions38 flashcards13 formulas & key relations5 concepts

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A labeled diagram of a Daniell cell, showing the anode (zinc electrode), cathode (copper electrode), electrolyte solutions (zinc sulfate, copper sulfate), salt bridge, and the direction of electron an
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13 Entries · 3 Sections

Formulas and Key Relations

1. Basic Classification and Naming

General formula of haloalkanes: C_nH_(2n+1)X

Rate law of SN1: Rate ∝ [Substrate]

Rate law of SN2: Rate = k [substrate] [nucleophile]

2. Reactivity Trends and Bond Facts

C-X bond strength order: C-F > C-Cl > C-Br > C-I

Order of C-X bond dissociation energy: C-F > C-Cl > C-Br > C-I

Reactivity of haloalkanes: R-I > R-Br > R-Cl > R-F

Reactivity of halogens towards alkanes: F2 > Cl2 > Br2 > I2

Ease of H-substitution in alkanes: benzylic > allylic > 3° > 2° > 1° > vinylic > aryl

4. Nucleophilic Substitution and Elimination

Alcohol to haloalkane: R-OH + HX --(Dehydrating agent)--> R-X + H2O

Chlorination of methane: CH4 + Cl2 (sunlight/heat) -> CH3Cl + CH2Cl2 + CHCl3 + CCl4

Finkelstein reaction: R-Cl/R-Br + NaI (acetone or methanol) -> R-I + NaCl/NaBr

Swarts reaction: 3CCl4 + 2SbF3 --SbCl5--> 3CCl2F2 + 2SbCl3

Hunsdiecker reaction: RCOOAg + Br2 -> RBr + CO2 + AgBr

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Frequently Asked Questions

What are the important topics in Haloalkanes and Haloarenes for ICSE Class 12 Chemistry?
Key topics in Haloalkanes and Haloarenes include Classification and Nomenclature, Preparation of Haloalkanes, Physical Properties and Nature of C-X Bond, Chemical Properties of Haloalkanes. Study these first, then practise questions on each for the ICSE Class 12 board exam.
How many formulas are in Haloalkanes and Haloarenes?
This sheet lists 13 formulas from Haloalkanes and Haloarenes, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Haloalkanes and Haloarenes for the ICSE Class 12 board exam?
Learn the core ideas first, then work through the 104 practice questions on Haloalkanes and Haloarenes. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Haloalkanes and Haloarenes

All ICSE Class 12 Chemistry Formula Sheet

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