NEET Chemistry Rate of Reaction MCQ Question
A graph is plotted with concentration of a reactant R on the y-axis and time t on the x-axis for a reaction. A tangent is drawn to the curve at t = 450 s. Which of the following represents the instantaneous rate of reaction at that time?
6.4 × 10⁻⁵ mol L⁻¹ s⁻¹
5.12 × 10⁻⁵ mol L⁻¹ s⁻¹
22 × 10⁻⁴ mol L⁻¹ s⁻¹
0 × 10⁻⁴ mol L⁻¹ s⁻¹
Correct Answer
Detailed Explanation
The instantaneous rate of reaction at t = 450 s is given by the slope of the tangent at that point, which is 6.4 × 10⁻⁵ mol L⁻¹ s⁻¹ as per the NCERT context provided.
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