Jamb Chemistry Past Questions and Answers

Question 2226:

• JAMB 2022

Alkanes are used mainly?

A. In the textile industry
B. In the hydrogenation of oils
C. As domestic and industrial fuels
D. As fine chemicals

Question 2227:

• JAMB 2022

What volume of (dm\(^3\)) of water will be added to 10dm\(^3\) of 2.0 mol/dm\(^3\) HCL acid solution to give a final solution of 0.5 mol/dm\(^3\)?

A. 30
B. 40
C. 20
D. 50

Question 2228:

• JAMB 2022

GAS	CO\(_2\)	N\(_2\)	O\(_2\)
% BY VOLUME	4	72	24

The above table shows the compositions of the atmosphere of planet X. Which of these gases are present in higher percentages on earth?

A. CO\(_2\) and O\(_2\)
B. N\(_2\) and CO\(_2\)
C. CO\(_2\), O\(_2\) and N\(_2\)
D. O\(_2\) and N\(_2\)

Question 2229:

• JAMB 2022

Hard water is water with high concentrations of dissolved ions, in particular calcium and

A. Magnesium ions
B. Nitrogen ions
C. Phosporus ions
D. Helium ions

Question 2230:

• JAMB 2022

The sub-atomic particles located in the nucleus of an atom are?

A. Neutron and proton
B. Proton and electron
C. Proton and ions
D. Neutron and electron