Acids, bases and salts - Jamb Chemistry Past Questions and Answers

Question 151:

• JAMB 2014

Which of the following will shift to the left from dilute tetraoxosulphate (VI) acid?

A. Lead
B. Magnesium
C. Cpper
D. Gold

Question 152:

• JAMB 2014

A few drops of NaOH solution was added to an unknown salt forming a white precipitate which is insoluble in excess solution. The cation likely present is

A. Zn²⁺
B. Pb²⁺
C. Ca²⁺
D. Al³⁺

Question 153:

• 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 154:

• 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 155:

• JAMB 2015

A liquid that will dissolve fat is

A. Hydrochloric acid
B. Calcium hydrochloride
C. Kerosene
D. Water