Hydrocarbons notes
OpenThe 4 formulas you need for Hydrocarbons, on one page.
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Chemistry · printable
Hydrocarbons: One-Page Formula Sheet
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Last updated: 26 October 2026
Formula sheet
Hydrocarbons formulas
Hydrocarbons — formula sheet
Formulas
- Ozonolysis splits C=C into carbonyls
- Huckel rule: aromatic if (4n + 2) π electrons
- Directive effects: −OH, −NH₂ are o/p directors; −NO₂ is meta
- Wurtz: 2RX + 2Na → R–R
Key ideas
- Markovnikov: H adds to the carbon with more H
- Peroxide effect gives anti-Markovnikov addition with HBr only
- Terminal alkynes are acidic
- Benzene undergoes substitution, not addition
Traps to avoid
- Applying the peroxide effect to HCl or HI
- Wrong ozonolysis products
- Misjudging ring activation
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FAQs
Frequently asked questions
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