X and Y has R_(f) 0.75 and 0.25 respectively. In column chromatrogaphy. Which is obtained first?

X and Y has R_(f) 0.75 and 0.25 respectively. In column chromatrogaphy

1.	X and Y has R_(f) 0.75 and 0.25 respectively. In column chromatrogaphy. Which is obtained first?
Answer» Solution :Y is OBTAINED first as it `R_(F)` is LESS. So it REMAIN at lower in column comes out first.