PadhoNaby JEE Master
  • Home
  • Learn
  • Plan & Focus
  • Community
  • Pricing
  • Play & Compete
  • Free Resources
Log inJoin Free
PadhoNaby JEE Master

Ask. Share. Learn. Grow Together. India's all-in-one community for JEE Main & JEE Advanced aspirants.

Explore

  • Learn
  • Plan & Focus
  • Community
  • Play & Compete
  • Free Resources

Resources

  • JEE Main PYQs
  • JEE Advanced PYQs
  • Formula Sheets
  • NCERT Mapping
  • Mock Analysis

Support

  • Help Center
  • Privacy Policy
  • Terms of Use
  • Contact Us

© 2026 PadhoNa. All rights reserved.

Formula Sheets / Chemistry

Chapter 25

Haloalkanes and Haloarenes

Revise with flashcards Download this chapter (PDF) All Chemistry formulas (PDF)
SN1, SN2 and eliminationPreparation and named reactionsHaloarenes

SN1, SN2 and elimination

  • SN2

    rate=k[RX][Nu−]; inversion;  CH3​X>1∘>2∘>3∘

  • SN1

    rate=k[RX]; racemisation;  3∘>2∘>1∘; polar protic solvent

  • Leaving group

    I−>Br−>Cl−>F−

  • Saytzeff

    elimination gives the more substituted alkene

Preparation and named reactions

  • Finkelstein: RCl+NaI→RI;Swarts: RBr+AgF→RF
  • Sandmeyer: ArN2+​CuX​ArX;Wurtz–Fittig: ArX+RX+Na→ArR

Haloarenes

  • less reactive to nucleophiles (C–X has partial double-bond character);  EWG at o/p speeds up SNAr
Coordination CompoundsAlcohols Phenols and Ethers