Multiple choice

An octane number of 100 is assigned to ...................

  1. 2,2,4-trimethylpentane

  2. 2-methylbutane

  3. 2,2-dimethylbutane

  4. 2,2-dimethylpentane

  5. 2-methylhexane
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A Correct answer
Explanation

The burning efficiency of gasoline is rated by an octane number scale. An octane number of 100 is assigned to 2,2,4-trimethylpentane (also known as isooctane), which is an excellent fuel.

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