13. Rate of the reaction: A→products is doubled when the concentration of A is incrcased four times.
If the half-life of the reaction is 16 min, at a given concentration, then the time required for 75% of
the reaction to complete is
(A) 24.0 min,
(B) 27.3 min,
(C) 48.0 min,
(D) 49.4 min,
(E) 52.3 min.
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