Chemistry Equilibrium UHS 2023
PMDC Verified Question 32 of 102
What is the ultimate fate of reversible reaction?
A
Completion of reaction
B
Complete consumption of reactants
C
Complete consumption of products
D
A state when there is no net concentration change
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: A state when there is no net concentration change
Concept:

Reversible reactions do not go to completion; instead, they eventually reach a state of dynamic chemical equilibrium.

Solution:

  • In a closed system, a reversible reaction will proceed until the forward reaction rate equals the backward reaction rate.


  • Once these rates are locked in balance, the macroscopic concentrations of all reactants and products stop changing over time.


  • Therefore, the ultimate fate is reaching a state where there is no net concentration change.


Why other options are incorrect:

Reversible reactions never reach "completion" (where reactants are fully consumed, eliminating A and B). Products are also never fully consumed (eliminating C).

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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