Question

20) The octane number of zero is assigned to:
a) 2-methyl octane.
b) n-heptane.
c) iso-octane.
d) 3-methyl octane.

Answer 1

HEY!!!

HERE'S THE CORRECT OPTION :-

$\huge{b) \: n - heptane}$

HOPE IT HELPS U :))

Answer 2

2 meathel octane is the answer