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.

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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 2018 - Question 30

Chemistry 2018 JAMB Past Questions - Question 30: calculate the percentage composition of oxygen in calcium trioxocarbonate (IV)

Choose the most appropriate option for the gap .

calculate the percentage composition of oxygen in calcium trioxocarbonate (IV)

A: 16

B: 48

C: 40

D: 12

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CHEMISTRY

Chemistry 2018 JAMB Past Questions - Question 30: calculate the percentage composition of oxygen in calcium trioxocarbonate (IV)

Examkit's JAMB CBT App

Correct Answer

Explanation