1.

X mL of a `60%` w/w alcohol by weight `(d = 0.6gm//mL)` must be used to prepare 200 mL of `12%` alcohol by weight `(d=0.6gm//mL)`. Then the value of X will be :A. 20B. 40C. 60D. 80

Answer» Correct Answer - C


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