Answer
option b is correct
Work Step by Step
so here we have to solve step by step for every pair of compounds to get the ratio 4:1
For a)
$\frac{g\space yellow : 1.00 g\space blue (right}{g\space yellow: 1.00 g \space blue (left)}$ = $\frac{3.00g\space yellow : 1.00 g\space blue (right}{1.00g\space yellow: 1.00 g \space blue (left)}$= 3:1
For b)
$\frac{g\space yellow : 1.00 g\space blue (right}{g\space yellow: 1.00 g \space blue (left)}$ = $\frac{2.00g\space yellow : 1.00 g\space blue (right}{1.00g\space yellow: 2.00 g \space blue (left)}$=4:1
which is the correct answer, so option b) is right
option c , d and e and be solved similarly.
