NEET Chemistry: Chemical Kinetics — MCQ Test 2

Q6. A second-order reaction has a rate constant of \( 0.02 \, \text{L mol}^{-1} \text{s}^{-1} \) and an initial concentration of \( 0.2 \, \text{mol L}^{-1} \). What is the half-life?

Q7. A first-order reaction has a rate constant of \( 0.0115 \, \text{min}^{-1} \). What percentage of the reactant remains after 60 minutes?

Q8. For a reaction \( \text{A} + 2\text{B} \to \text{C} \), the rate of disappearance of B is \( 0.06 \, \text{mol L}^{-1} \text{s}^{-1} \). What is the rate of reaction?

Q9. A zero-order reaction has an initial concentration of \( 0.15 \, \text{mol L}^{-1} \) and a rate constant of \( 2.5 \times 10^{-3} \, \text{mol L}^{-1} \text{s}^{-1} \). What is the half-life?

Q10. The half-life of a first-order reaction is 20 minutes. What is the rate constant?

NEET Chemistry — Chemical Kinetics

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A first-order reaction is 20% complete in 10 minutes. What is the rate constant?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Chemistry preparation, focusing specifically on the chapter Chemical Kinetics. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Reaction, Complete, Constant, Concentration, Increase, and Increases.

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Preview of Questions in this Test

Q1. A first-order reaction is 20% complete in 10 minutes. What is the rate constant?

  • A. 0.0223 min\(^{-1}\)
  • B. 0.0346 min\(^{-1}\)
  • C. 0.0154 min\(^{-1}\)
  • D. 0.0462 min\(^{-1}\)

Q2. A reaction has the rate law \( \text{Rate} = k[\text{A}]^2[\text{B}] \). If the concentration of A is tripled and B is doubled, by how many times will the rate increase?

  • A. 6
  • B. 18
  • C. 12
  • D. 9

Q3. A reaction has a rate constant of \( 0.05 \, \text{L mol}^{-1} \text{s}^{-1} \). What is its order?

  • A. 2
  • B. 1
  • C. 0
  • D. 3

Q4. A reaction’s rate increases by 2.25 times when the concentration of the reactant is increased by 1.5 times. What is the order of the reaction?

  • A. 1
  • B. 2
  • C. 1.5
  • D. 3

Q5. A reaction has the rate law \( \text{Rate} = k[\text{A}]^2 \). If the concentration of A is increased by 5 times, by how many times will the rate increase?

  • A. 5
  • B. 25
  • C. 10
  • D. 50

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