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NEET levelSingle correct optionDifficulty 1 of 3ck064

For a second order reaction of the type $2 A P$ , the initial concentration is made three times larger. The half-life becomes

Aone third of its original value
Bthree times its original value
Cnine times its original value
Dunchanged

Answer: A

For second order

t_{1/2} = 1/ (k [A]_{0})

, inversely proportional to

[A]_{0}

. Tripling

[A]_{0}

divides the half-life by 3.

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