MCQ practice · SSC Chemistry Board questions · Chapter 11: Mineral Resources: Fossils
What is the range of carbon numbers in naphtha?
Think it through first, then pick an option.
- a 5-10
- b 7-14
- c 11-16
- d 17-20
Answer and explanation
Correct answer: b 7-14
The hydrocarbons in naphtha have 7 to 14 carbon atoms per molecule.
Why the other options are wrong
- a 5-10: 5-10 is petrol's carbon number; naphtha has 7-14.
- c 11-16: 11-16 is kerosene's carbon number; naphtha has 7-14.
- d 17-20: 17-20 is diesel's carbon number; naphtha has 7-14.
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