Jamb Chemistry 2022 Past Questions and Answers

Question 6:

• JAMB 2022

When heat is absorbed during a chemical reaction, the reaction is said to be

A. Thermodynamic
B. Exothermic
C. Isothermal
D. Endothermic

Question 7:

• JAMB 2022

Which of the following best represent solid gas mixture?

A. Milk
B. Kerosene
C. Soil
D. Smoke

Question 8:

• JAMB 2022

H\(^+\) + OH\(^-\) → H\(_2\)O
The equation above illustrates

A. Precipitation
B. Hydration
C. Hydrolysis
D. Neutralization

Question 9:

• JAMB 2022

Electrons enter into orbitals in order of increasing energy as exemplified by?

A. 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^2\)2pz\(^0\)3s\(^0\)
B. 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^1\)2pz\(^1\)3s\(^0\)
C. 1S\(^2\)2S\(^2\)2PX\(^1\)2py\(^1\)2pz\(^1\)3s\(^1\)
D. 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^2\)2pz\(^0\)3s\(^1\)

Question 10:

• JAMB 2022

Wrought iron is obtained by heating cast iron in a furnace with?

A. Magnetite
B. Haematite
C. Carbon(ii)oxide
D. Calcium trioxosilicate(iv)