Post Utme Chemistry Past Questions and Answers

Question 871:

Fetraoxosulphate (VI) acid is described as strong acid because it is highly ____________

A. Corrosive
B. Concentrated
C. Reactive
D. Soluble in water
E. Ionized in water

Question 872:

Which of these metals. Mg. \(Fe , Pb\), and \(Cu\) will dissolve in diluteHCl if air is blown through the solution?

A. Mg and Fe only
B. All the metals
C. \(Mg , Fe\) and \(Cu\)
D. Mg, Fe and Pb
E. Mg, Pb and Cu

Question 873:

A correct electrochemical series can be obtained from \(K , Na , Ca , Al , Mg , Zn , Fe , Pb , H . Ag , Au\) by interchanging

A. \(Zn\) and \(Fe\)
B. \(Zn\) and \(Pb\)
C. \(Al\) and \(Mg\)
D. Au and Ag
E. None of the above

Question 874:

The oxidation of \(CH _{3} CH _{2}\left( CH _{3}\right) OH\) gives ____________

A. 2-butanone
B. 2-butanal
C. Butane
D. Butanoic
E. Methyl butane

Question 875:

The solubility of alkanols in water is due to ____________

A. Their ionic character
B. Their covalent nature
C. Ability to form hydrogen bond
D. Their low boiling points
E. Their low dielectric com