Chemical Kinetics — Advanced + PYQ (Hard | 45 min | 50 Questions)

Practice 100 questions on Chemical Kinetics — Advanced + PYQ (Hard | 45 min | 50 Questions). Includes: **Assertion (A):** A catalyst increases the…; **Assertion (A):** For a first-order reaction, the…; **Assertion (A):** The order of a reaction can be zero…. Free quiz on NoteTube.

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1.
If the rate of a reaction triples when [A] is increased 9-fold (with [B] constant), the order with respect to A is:
2.
**Assertion (A):** The overall order of a complex reaction equals the molecularity of the rate-determining step. **Reason (R):** The rate-determining step controls the overall reaction rate.
3.
**Assertion (A):** Activation energy can never be zero for any reaction. **Reason (R):** Activation energy is the energy required to break bonds in reactant molecules.
4.
Two reactions X and Y have Arrhenius plots (ln k vs 1/T). X has slope = −8000 K and Y has slope = −4000 K. At the same temperature:
5.
**Assertion (A):** Increasing temperature always increases the rate of a reaction. **Reason (R):** Higher temperature provides more molecules with energy greater than Ea.

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