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What is the general formula for alkenes?

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Question: What is the general formula for alkenes?

Options:

  1. C_nH_(2n)
  2. C_nH_(2n+2)
  3. C_nH_(2n-2)
  4. C_nH_(2n+1)

Correct Answer: C_nH_(2n)

Solution: 

Alkenes are unsaturated hydrocarbons with the general formula CnH2n.

What is the general formula for alkenes?

Practice Questions

Q1
What is the general formula for alkenes?
  1. C_nH_(2n)
  2. C_nH_(2n+2)
  3. C_nH_(2n-2)
  4. C_nH_(2n+1)

Questions & Step-by-Step Solutions

What is the general formula for alkenes?
Correct Answer: CnH2n
  • Step 1: Understand that alkenes are a type of hydrocarbon, which means they are made up of hydrogen (H) and carbon (C) atoms.
  • Step 2: Know that alkenes have at least one double bond between carbon atoms, making them unsaturated.
  • Step 3: Learn the general formula for alkenes, which is written as CnH2n.
  • Step 4: In the formula, 'n' represents the number of carbon atoms in the alkene.
  • Step 5: For every carbon atom (n), there are 2n hydrogen atoms.
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