Chemistry Reaction Kinetics BUMHS 2022
PMDC Verified Question 37 of 80
A solution which does not tend to varies in pH is called?
A
Acidic solution
B
Buffer solution
C
Bases Solution
D
Super saturated solution
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Buffer solution
Concept:

A buffer is a special chemical system designed to maintain a stable environment against acid-base fluctuations.

Solution:

  • A buffer solution typically consists of a weak acid and its conjugate base (or a weak base and its conjugate acid).
  • When small amounts of strong acid or base are added, the buffering components neutralize them, effectively resisting any significant change in the overall pH of the system.


Why other options are incorrect:

Standard acidic or basic solutions will drastically change pH if the opposite is added. A supersaturated solution refers to solute concentration beyond standard solubility, unrelated to pH buffering.

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.

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.