Chemistry · 2025
JEE Main · 7 April 2025, Shift 1 · Q57
A person's wound was exposed to some bacteria and then bacterial growth started to happen at the same place. The wound was later treated with some…
A person's wound was exposed to some bacteria and then bacterial growth started to happen at the same place. The wound was later treated with some antibacterial medicine and the rate of bacterial decay(r) was found to be proportional with the square of the existing number of bacteria at any instance. Which of the following set of graphs correctly represents the 'before' and 'after' situation of the application of the medicine?
[Given: $\displaystyle \mathrm{N}=$ No. of bacteria, $\displaystyle \mathrm{t}=$ time, bacterial growth follows $\displaystyle 1{ }^{\text {st }}$ order kinetics.]
Official answer
From NTA’s final answer key for this paper.
(4)
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JEE Main 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.