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Which of the following is an alkane?

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Question: Which of the following is an alkane?

Options:

  1. C2H4
  2. C3H6
  3. C4H10
  4. C5H8

Correct Answer: C4H10

Solution: 

Alkanes are saturated hydrocarbons with the general formula CnH2n+2. C4H10 (butane) fits this formula.

Which of the following is an alkane?

Practice Questions

Q1
Which of the following is an alkane?
  1. C2H4
  2. C3H6
  3. C4H10
  4. C5H8

Questions & Step-by-Step Solutions

Which of the following is an alkane?
Correct Answer: C4H10 (butane)
  • Step 1: Understand what an alkane is. Alkanes are a type of hydrocarbon that only have single bonds between carbon atoms.
  • Step 2: Know the general formula for alkanes, which is CnH2n+2. This means for every 'n' carbon atoms, there are '2n+2' hydrogen atoms.
  • Step 3: Identify the given compound, which is C4H10. Here, 'C4' means there are 4 carbon atoms.
  • Step 4: Calculate the number of hydrogen atoms using the formula. For n=4, the number of hydrogen atoms should be 2(4)+2 = 10.
  • Step 5: Compare the calculated number of hydrogen atoms (10) with the given compound (C4H10). They match, which means C4H10 is an alkane.
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