Jamb Chemistry 2023 Past Questions and Answers

Question 46:

• JAMB 2023

What is the chemical structure of soap and detergent molecules?

A. Hydrophilic head and hydrophobic tail
B. Hydrophilic head and hydrophilic tail
C. Hydrophobic head and hydrophobic tail
D. Hydrophilic tail and hydrophobic head

Question 47:

• JAMB 2023

What is the solubility product constant (Ksp) used for?

A. To measure the total mass of a solute that can dissolve in a solvent
B. To determine the concentration of a solute in a saturated solution
C. To calculate the solubility of a solute in a given solvent
D. To compare the solubilities of different solutes in the same solvent

Question 48:

• JAMB 2023

Which trace gas in the atmosphere plays a significant role in the greenhouse effect?

A. Oxygen
B. Argon
C. Carbon dioxide
D. Nitrogen

Question 49:

• JAMB 2023

Which of the following methods can be used to remove temporary hardness from water?

A. Boiling
B. Filtration
C. Sedimentation
D. Chlorination

Question 50:

• JAMB 2023

What is Faraday's constant?

A. 6.022 x 10\(^{23}\) mol\(^{-1}\)
B. 3.00 x 10\(^8\) m/s
C. 9.81 m/s\(^2\)
D. 96,485 C/mol