Jamb Chemistry Past Questions and Answers

Question 1796:

• JAMB 2015

The acid in electrolysis of water is dilute

A. HNO₃
B. CH₃COOH
C. H₂SO[sub][/sub]
D. HCl

Question 1797:

• JAMB 2015

A small quantity of solid ammonium chloride (NH4Cl) texted gently in a test tube, the solid gradually disappear produce two gases. Later, a white cloudy deposit was absence on the cooler part of the test tube. The ammonium chloride is to have undergo

A. Distillation
B. Sublimation
C. Precipitation
D. Evaporation

Question 1798:

• JAMB 2015

When salt loses its water of crystallization to the atmosphere on exposure, the process is said to be

A. Efflorescence
B. Déliquescence
C. Effervescence
D. Fluorescence

Question 1799:

• JAMB 2015

Atomicity of ozone is

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

Question 1800:

• JAMB 2015

Which of the noble gases has the greatest ionization energy

A. He
B. Xe
C. Ar
D. Rr