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Chemical Kinetics

JEE Main level, single correct, medium

4 of 4

Question 4 of 4

A first order reaction is $50\%$ complete in $20\,\text{minutes}$ . Time required for $75\%$ completion is:

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Answer: (C) $40\,\text{minutes}$

t_{75\%} = 2 \times t_{50\%} = 2 \times 20 = 40\,\text{minutes}

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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JEE Main Chemistry practice question on Chemical Kinetics, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

A first order reaction is 50%50\%50% complete in 20 minutes20\,\text{minutes}20minutes. Time required for 75%75\%75% completion is:

JEE Main question paper PDF

More Chemistry practice

A first order reaction is $50\%$ complete in $20\,\text{minutes}$ . Time required for $75\%$ completion is: