Question

Petrol is a mixture of hydrocarbons with ______ carbon atoms.

• A. 2 to 5
• B. 5 to 9
• C. 5 to 7
• D. 4 to 6

Answer 1

The correct option is B 5 to 9

• Petroleum is a very complex mixture of hydrocarbons-compounds that consist of carbon and hydrogen only. Small amounts of other organic compounds containing oxygen, sulfur, nitrogen, phosphorus, and other elements are also present.
  
• Petroleum is a mixture of a very large number of different hydrocarbons; the most commonly found molecules are alkanes (paraffin), cycloalkanes (naphthenes), aromatic hydrocarbons, or more complicated chemicals like asphaltenes.
  
• This mixture of hydrocarbons generally has 5 to 9 carbon atoms.
• Hence option B is a correct answer.