_____________ is the number of moles of a particular substance in a mixtures or solution divided by the total number of moles present in the mixture or solution.
(a) Molecular weight
(b) Average molecular weight
(c) Atomic weight
(d) Mole fraction
I had been asked this question by my college director while I was bunking the class.
The above asked question is from Mole and Molecular Weight-II topic in portion Introductory Concepts of Chemical Process Calculation