Question
Given above is the concentration vs time plot for a dissociation reaction : A nB . Based on the data of the initial phase of the reaction (initial 10 min), the value of n is \_\_\_\_.
JEE Main
Chemistry
Chemical Kinetics
2026
JEE Main 2026 (23 January Shift 2)
JEE Main Chemistry Question (2026) — Solution
Options
- A. 3
- B. 2
- C. 4
- D. 5
Answer
A. 3
Step-by-step solution
A nB At t = 0: [A] = 0.05 M, [B] = 0 At t = 10 min: [A] = 0.04 M, [B] = 0.01 n From the graph, [B] at t = 10 min = 0.03 M 0.01 n = 0.03 n = 3
Related: Chemistry — Chemical Kinetics · All PYQ Banks