605Chemical EngineeringMedium
Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its________?
ABoth A. & B.
BAromatics content
CNeither ‘a’ nor ‘b’
DMolecular weight
Correct answer
A. Both A. & B.
Explanation
The correct answer is Both A. & B..