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ECAT Practice Chemistry Chemical Equilibrium MCQs Test 4
ECAT Quiz
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ECAT Practice Chemistry Chemical Equilibrium MCQs Test 4

Practice ECAT 2026 Practice Test Chemistry MCQs from Chemical Equilibrium. Get instant results with Explanation.
Practice Quiz 4 for "Chemical Equilibrium" (Chemistry). Total 61 MCQs available, split into 7 quizzes. Start with the fundamentals and build a strong base. This area is highly tested in ECAT.
General10 MCQs
1. The ion product of water Kw at 25°C is:
2. A buffer solution resists changes in pH upon addition of small amounts of acid or base. It consists of a:
3. The Henderson-Hasselbalch equation for a buffer is:
4. The most effective buffer range is when pH = pKa, i.e., when [salt]/[acid] =
5. The equilibrium constant for the dissociation of water is called:
General10 MCQs
6. The acid dissociation constant Ka is a measure of:
7. The base dissociation constant Kb is a measure of:
8. For a weak acid HA, the expression for Ka is:
9. For a weak base B, the expression for Kb is:
10. The relationship between Ka and Kb for a conjugate acid-base pair is:

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Conducting Body: UET
Frequency: Quarterly | Time: 100 Minutes
Negative Marking: No

⚡ Test Pattern (Total: 100 MCQs):

Merit Formula: Typically, the aggregate is calculated as: (ECAT × 33.33%) + (FSc Part-I × 16.67%) + (Matric × 50%). However, the respective university may revise its merit calculation formula or admission criteria from time to time. Please confirm the official criteria before applying.

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