Water - Jamb Chemistry Past Questions and Answers

Question 41:

• JAMB 2000

A side effect of soft water is that

A. It gives offensive taste
B. Excess calcium is precipitated
C. It attcaks lead contained in pipes
D. It encourages the growth of bacteria

Question 42:

• JAMB 2000

Water molecule can be ligands especially when they are bonded to

A. Alkaline earth metals
B. Alkali metals
C. Transition metals
D. Group VII elements

Question 43:

• JAMB 2000

The refreshing and characteristic taste of soda water and other soft drinks is as a result of the presence in them of

A. Carbon (IV) oxide
B. Carbon (II) oxide
C. Soda
D. Glucose

Question 44:

• JAMB 2000

The conditions necessary for the extraction of a water molecule from two molecules of ethanol are

A. Less acid and lower temperature
B. Excess acid and a lower temperature
C. Excess acid and a higher temperature
D. Less acid and a higher temperature

Question 45:

• JAMB 2000

The chlorinated alkane often used industrially to remove grease is

A. Tetrachloromethane
B. Chloromethane
C. Trichloromethane
D. Dichlorometane