Jamb Chemistry 2022 Past Questions and Answers

Question 11:

• JAMB 2022

In the extraction of iron, hot air is introduced into the blast furnace through?

A. Valves
B. Open-hearths
C. Arcs
D. Tuyeres

Question 12:

• JAMB 2022

How many bonding pair are present in carbon(iv)oxide?

A. 4
B. 3
C. 2
D. 1

Question 13:

• JAMB 2022

2-methylprop-1-ene is a structural isomer of?

A. But-1-yne
B. 2-methyl But-1-ene
C. 3-methyl prop-1-yne
D. But-2-ene

Question 14:

• 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 15:

• 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