Examkits is a JAMB CBT practice platform that provides over 20 years of past questions, Post UTME questions, and detailed video solutions to help students prepare for their exams.

How do I practice JAMB past questions on Examkits?

You can practice JAMB past questions online, on Android, or on a desktop using the Examkits app. Just register on our website and choose your preferred device.

Does Examkits work offline?

Yes. Our Android and Windows versions support offline usage. Once downloaded and activated, no internet is required to use most of the features.

Do you offer video solutions for JAMB questions?

Yes, Examkits provides detailed video explanations for all JAMB past questions from 2000 to 2024, helping students understand how to solve each problem.

Examkits offers free practice for some subjects. However, full access requires a one-time affordable activation fee for each version of the app.

CHEMISTRY

JAMB 2012 - Question 14

Chemistry 2012 JAMB Past Questions - Question 14: the chemicals used to soften hard water involves the addition of

Choose the most appropriate option for the gap .

the chemicals used to soften hard water involves the addition of

A: insoluble sodium compoundswhich form soluble solutions of calcium and magnessium

B: soluble sodium compounds which form soluble solutions of calcium and magnesium ions

C: soluble sodium compounds which form insoluble precipitates of calcium and magnesium

D: insoluble precipitates of calcium and magnessium ions

Examkit's JAMB CBT App

Practice JAMB offline with our Online, PC and Mobile App

✅ 25+ years of past questions (2000 to 2025)
✅ Video solutions and explanation to questions
✅ E-library
✅ Study by topic
✅ And more.

CHEMISTRY

Chemistry 2012 JAMB Past Questions - Question 14: the chemicals used to soften hard water involves the addition of

Examkit's JAMB CBT App

Correct Answer

Explanation