As the initial concentration increases from \( 0.75 \) to \( 1.55 \mathrm{M} \) in a reaction, \...

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As the initial concentration increases from \( 0.75 \) to \( 1.55 \mathrm{M} \) in a reaction, \( t_{1 / 2} \) decreases from 60 to \( 29 \mathrm{~s} \). The order of the reaction is
(a) zero
(b) first
(c) second
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