A. 20% n- heptane + 80% iso-octane
B. 80% n- heptane + 20% iso-octane
C. 20% n- heptane + 80% n-octane
D. 80% n-heptane + 20% n- octane
Petrol, which has octane number 80 contain 20% n-heptane and 80% iso-octane.
The correct answer to the question: "The petrol having octane number 80 has ____________?" is "20% n- heptane + 80% iso-octane ".
