Discussion
Assertion (A): Pale shades are among the hardest to predict accurately.
Reason (R): A small absolute error in colourant amount is a large proportional error.
Answer: B
Correct answer: Both A and R are true, and R is the correct explanation of A
Both are true and the reason gives the mechanism. A recipe calling for 0.02 per cent of a dye is thrown out by a weighing error that would be negligible in a two per cent recipe, and pale shades are also the ones in which small colour differences are most visible. Dispensing accuracy, not prediction, is usually the limiting factor here.
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