Question:
The pH of an aqueous solution of a salt is 9. The types of acid and base from which this salt is formed are:
The pH of an aqueous solution of a salt is 9. The types of acid and base from which this salt is formed are:
Updated On: Dec 20, 2024
- weak acid and weak base
- weak acid and strong base
- strong acid and weak base
- strong acid and strong base
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
A pH of 9 indicates that the solution is basic. Salts formed from a strong acid and strong base have a neutral pH (around 7).
Salts formed from a weak acid and a strong base produce a basic solution because the conjugate base of the weak acid hydrolyzes to produce hydroxide ions (\( \text{OH}^- \)). Salts formed from a strong acid and a weak base give acidic solutions because the conjugate acid of the weak base hydrolyzes to produce \( \text{H}_3\text{O}^+ \) ions.
Salts from weak acids and weak bases can be acidic, basic, or neutral, depending on the relative strengths of the acid and base. Since the pH is 9 (basic), the salt must be formed from a weak acid and a strong base.
Was this answer helpful?
0
0
Top Questions on Acids, Bases And Salts
- Two solutions X and Y give red and blue colour respectively with universal indicator.
- In which solution is the hydrogen ion concentration more than the other? Justify your answer.
- If X and Y are mixed in proper amounts and the resultant mixture is tested with a universal indicator, it turns green. What is the nature of the salt formed? Justify your answer.
- CBSE Class X - 2024
- Science
- Acids, Bases And Salts
- A compound ‘X’ on heating at \(373 \, \text{K}\) loses water molecules and becomes ‘Y’. Substance ‘Y’ is used by doctors for supporting fractured bones in the right position.
- Identify ‘X’ and ‘Y’.
- How can we obtain ‘X’ from ‘Y’?
- CBSE Class X - 2024
- Science
- Acids, Bases And Salts
- A colourless gas G is produced when egg-shells are treated with a solution S. The gas G turns lime water milky. S and G respectively are:
- CBSE Class X - 2024
- Science
- Acids, Bases And Salts
- Write the name and formula of
(1) an acidic salt and
(2) a basic salt giving the name of the parent acid and parent base used to form the salt in each case.- CBSE Class X - 2024
- Science
- Acids, Bases And Salts
- Five solutions A, B, C, D and E when tested with pH paper showed pH as 4, 1, 13, 7 and 10 respectively. Which solution is:
(1) Strongly acidic (2) Strongly alkaline (3) Weakly acidic (4) Neutral and (5) Weakly alkaline? Arrange the solutions in increasing order of H+ ion concentration.- CBSE Class X - 2024
- Science
- Acids, Bases And Salts
View More Questions
Questions Asked in CBSE X exam
- Prove that: \((\cot \theta - \csc \theta)^2 = \frac{1 - \cos \theta}{1 + \cos \theta}.\)
- CBSE Class X - 2024
- Trigonometry
- Assertion (A): The rainbow is a natural spectrum of sunlight in the sky.
Reason (R) : Rainbow is formed in the sky when the sun is overhead and water droplets are also present in air.- CBSE Class X - 2024
- Light - Reflection and Refraction
- Which of the following statement(s) is (are) true about human heart?
(a) Right atrium receives oxygenated blood from lungs through pulmonary artery.
(b) Left atrium transfers oxygenated blood to left ventricle which sends it to various parts of the body.
(c) Right atrium receives deoxygenated blood through vena cava from upper and lower body.
(d) Left atrium transfers oxygenated blood to aorta which sends it to different parts of the body.- CBSE Class X - 2024
- Circulatory System
- How does a physical activity facilitator maintain professional etiquettes?
- CBSE Class X - 2024
- Self-management Skills
- Assertion (A): The sum of the first fifteen terms of the AP $21, 18, 15, 12, \dots$ is zero.
Reason (R): The sum of the first $n$ terms of an AP with first term $a$ and common difference $d$ is given by: \[ S_n = \frac{n}{2} \left[ a + (n - 1) d \right]. \]- CBSE Class X - 2024
- Arithmetic Progression
View More Questions