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Hydrocarbon formulas

Master Hydrocarbon through 12 JEE Advanced-level formulas, systematically structured with every variable spelled out. Revise concept-wise, identify the areas where you need improvement, and focus your preparation with greater precision.

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Hydrocarbon, every formula

12 formulas, typeset and free. Print it, or keep it open beside your practice.

General formula alkanes
$C_{n} H_{2 n + 2}$
Q1MCQAlkane formula
The general formula of an alkane is:
- A
  $C_nH_{2n+2}$
- B
  $C_nH_{2n}$
- C
  $C_nH_{2n-2}$
- D
  $C_nH_{n}$
General formula alkenes
$C_{n} H_{2 n}$
Q1MCQAlkene formula
The general formula of an alkene is:
- A
  $C_nH_{2n}$
- B
  $C_nH_{2n+2}$
- C
  $C_nH_{2n-2}$
- D
  $C_nH_{n}$
General formula alkynes
$C_{n} H_{2 n - 2}$
Q1MCQAlkyne formula
The general formula of an alkyne is:
- A
  $C_nH_{2n-2}$
- B
  $C_nH_{2n}$
- C
  $C_nH_{2n+2}$
- D
  $C_nH_{n}$
Markovnikov's rule
$H adds to the C with more H’s$
Q1MCQMarkovnikov
By Markovnikov's rule, in HX addition the H goes to the carbon with:
- A
  more hydrogens
- B
  fewer hydrogens
- C
  no hydrogens
- D
  the double bond
Anti-Markovnikov (peroxide effect)
$HBr adds opposite with peroxide$
Q1MCQPeroxide effect
The anti-Markovnikov addition of HBr occurs in the presence of:
- A
  peroxides
- B
  acids
- C
  water
- D
  a catalyst metal
Combustion of alkanes
$C_{n} H_{2 n + 2} + O_{2} \to C O_{2} + H_{2} O$
Q1MCQCombustion
Complete combustion of an alkane gives:
- A
  $CO_2$ and $H_2O$
- B
  CO and $H_2$
- C
  C and $H_2O$
- D
  only $CO_2$
Wurtz reaction
$2 R X + 2 N a \to R - R + 2 N a X$
Q1MCQWurtz
The Wurtz reaction couples two alkyl halides using:
- A
  sodium metal
- B
  water
- C
  acid
- D
  a base
Ozonolysis
$alkene \to aldehydes/ketones$
Q1MCQOzonolysis
Ozonolysis of an alkene gives:
- A
  aldehydes and/or ketones
- B
  alcohols
- C
  alkanes
- D
  acids only
Baeyer's reagent
$cold dilute K M n O_{4} (alkene test)$
Q1MCQBaeyer
Baeyer's reagent is used to test for:
- A
  unsaturation (alkenes)
- B
  alcohols
- C
  acids
- D
  amines
Hydrogenation
$alkene + H_{2} \to alkane (Ni)$
Q1MCQHydrogenation
Catalytic hydrogenation of an alkene gives a(n):
- A
  alkane
- B
  alkyne
- C
  alcohol
- D
  acid
Acidity of terminal alkyne
$terminal \equiv C H is weakly acidic$
Q1MCQAlkyne acidity
Terminal alkynes are weakly acidic because of the:
- A
  $sp$-hybridised C–H bond
- B
  $sp^{3}$ carbon
- C
  double bond
- D
  lone pair
Aromatic (benzene) formula
$C_{6} H_{6}$

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Hydrocarbon formulas

Hydrocarbon, every formula

General formula alkanes

General formula alkenes

General formula alkynes

Markovnikov's rule

Anti-Markovnikov (peroxide effect)

Combustion of alkanes

Wurtz reaction

Ozonolysis

Baeyer's reagent

Hydrogenation

Acidity of terminal alkyne

Aromatic (benzene) formula

More JEE Advanced Chemistry formula sheets

Other ways to revise this chapter

Preparing students for India’s top institutes

Join QuestPix, Today!