NEET 2026 (Phase 1) · ChemistryIntegrated ratePrevious Year Question
For a certain reaction , the plot of concentration versus time is a straight line with a constant negative slope, as shown in the graph. The order of the reaction is:
Answer: (A) . \textbf{Answer:} (A) \textbf{Solution:} For a zero-order reaction, the integrated rate law is: This is the equation of a straight line in vs with a constant negative slope equal to .
![NEET 2026 (Phase 1) Chemistry question — For a certain reaction R -> Product, the plot of concentration [R] versus time is a…](https://firebasestorage.googleapis.com/v0/b/halal-neet--masha-allah.firebasestorage.app/o/pyq_images%2FChemicalKinetics%2Fck_pyq_2026_75.png?alt=media&token=408a3b2e-2b4c-4b40-a0a5-844e48a713cb)
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Correct Answer
(A)
Solution & Explanation
\textbf{Answer:} (A) \textbf{Solution:} For a zero-order reaction, the integrated rate law is: This is the equation of a straight line in vs with a constant negative slope equal to . Since the given plot is a straight line with constant negative slope, the reaction is zero order.
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