Chalk White is a brighter pure white compared to White. Where White has a slight cold blue tint to it.
Similar to poplin, broadcloth is a tightly woven and very versatile poly-cotton fabric with a faint rib pattern used in various applications, such as: clothing, sleepwear, quilts, decor, crafts, etc. You name it, you can do it. Easy to work with, and washes, presses and wears well.