Practice question

MCQ

Question

A zero-order reaction has a rate constant of 6.0 × 10⁻³ mol L⁻¹ min⁻¹. If the initial concentration is 0.18 mol L⁻¹, how long will it take for 33.33% decomposition?

Choose one · Correct answer highlighted

10 min Correct 15 min 20 min 25 min

t = ([R]₀ − [R])/k = (0.18 − 0.12)/(6.0×10⁻³) = 10 min.

Share this question

Discussion

0 comments

Please log in to join the discussion.

No comments yet. Be the first to start the discussion.

Guides and insights connected to this topic

Genetic 25 Sep 2026

Explore the causes, symptoms, risk factors, diagnosis methods and treatment options for Down syndrome (trisomy 21).

Class X Science 12 Sep 2026

Learn the basics of chemical reactions, including balanced equations, reaction types, redox processes, and how to write word and chemical equations.

NCERT 12 Zoology 06 Sep 2026

Key concepts of inheritance and variation: Mendel’s laws, monohybrid and dihybrid crosses, genetic linkage, sex determination and common gen...