Buffer solutions are
Correct answer: A. Which resist in change in PH and POH
- A. Which resist in change in PH and POH
- B. Only in PH
- C. Only POH
- D. Does not resist
Explanation
Buffer solutions are solutions that resist changes in pH when an acid or base is added to them. They contain a weak acid and its corresponding conjugate base or a weak base and its corresponding conjugate acid. The presence of these conjugate pairs allows the buffer solution to neutralize added acid or base, preventing a significant change in pH.Buffer solutions are effective in maintaining pH because the weak acid/base can react with the added H⁺ or OH⁻ ions, forming the corresponding conjugate and water. This reaction helps to counteract the effect of the added acid or base on the pH of the solution.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
Practise Reaction Kinetics
573 free Reaction Kinetics MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Reaction Kinetics questions
Rate expression fo NH3 synthesis is
For most of the chemical reactions the rate of reaction
The time taken for 90% of a 1st order reaction to complete is approximately
Redox chemical reaction equation can be balanced by
Free energy change for a reversible process is
When the following reaction equation is properly balanced, the number of moles of O2 will beC3H8 +O2 ⇌ CO2 +H2O