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Which is also called as Triptane?

  • A.2, 4, 6 - Trimethyl Benzene
  • B.2, 2, 4 - Trimethyl Pentane
  • C.2, 2, 3 - Trimethyl Butane
  • D.1, 2, 3 - Trimethyl Butane

Answer: C

Triptane is 2,2,3-trimethylbutane, a highly branched isomer of heptane with a very high octane rating, option C.

2,2,4-Trimethylpentane is iso-octane, 2,4,6-trimethylbenzene is mesitylene, and 1,2,3-trimethylbutane is not a valid name.

Triptane is the common name for 2,2,3-trimethylbutane, an isomer of heptane with the formula C7H16 and an octane number above 100. It is a branched hydrocarbon, which explains its antiknock property. 2,2,4-Trimethylpentane is the isooctane of the 100 point on the octane scale.

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