Question

How many independent equation are possible if 1 has pure A, 2 has mixture of B and C, 3 has mixture of A, B and C, 4 has pure C, 5 has mixture of A and B.

(a) 1

(b) 3

(c) 6

(d) 9

I got this question in an internship interview.

My question is based upon Material Balances Problems Involving Multiple Units in section The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering

Answer 1

Correct choice is (c) 6

To elaborate: It will be just thrice the number when there was only one component.