A sample of petrol is a mixture of `30% n-` heptane and `70%` iso`-` octane . The sample has octane number

Define octane number. A sample of gasoline produces the same knocking as mixture containing 35% n-heptane and 65% iso-octane. What is the octane number of the sample ?

A fuel contains 25% n-heptane and 75% iso-octane. Its octane number is :

A sample of petrol contains 30% n-heptane. Its octane number is

Which compound has octane number zero ?

The petrol of octane number 80 has :

A fuel has the same knocking property as a mixture of 70% isooctane (2,2,-4 trimethyl pentane) and 30% n heptane by volume, the octane number of the fuel is

A fuel has the same knowcking property as a mixture of 70% isooctane (2,2,-4 trimethyl pentane) and 30% n heptane by volume, the octane number of the fuel is