In a 1 st order reaction, reactant concentration \( C \) varies with time \( t \) as : (a) \( \f...

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In a 1 st order reaction, reactant concentration \( C \) varies with time \( t \) as :
(a) \( \frac{1}{C} \) increases linearly with \( t \)
(b) \( \log C \) decreases linearly with \( t \)
(c) \( C \) decreases with \( \frac{1}{t} \)
(d) \( \log C \) decreases with \( \frac{1}{t} \)
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