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9. Hydricarbon — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry9. Hydricarbon1 Mark
MCQ
Which of the following has highest octane number
  • A
    $n-$  hexane
  • B
    $n - $ heptane
  • C
    $n-$  pentane
  • ✓
    $2, 2, 4-$  trimethyl pentane
✓

Answer

Correct option: D.
$2, 2, 4-$  trimethyl pentane
d
(d) iso-octane i.e. $2,2,4-$  trimethyl pentane has highest octane number.

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