Post Utme Chemistry Past Questions and Answers

Question 1076:

Which of the following would you use as an indicator in the titration of sodium carbonate against hydrochloric acid for a complete neutralization ____________

A. Methyl orange
B. Litmus
C. Phenolphthalein
D. Any indicator

Question 1077:

\(2 SO _{2}+ O _{2} \rightarrow 2 SO _{3}\). In the equation above, the substance that will increase the rate of production of sulphur (vi) oxide is ____________

A. Nickel
B. Vanadium (v) oxide
C. Finely divided iron
D. Manganese (IV) oxide

Question 1078:

Which of the following types of bonding does not involve the formation of new substance?

A. Metallic
B. Covalent
C. Coordinate
D. Electrovalent

Question 1079:

In the equation \(m=Z Q . Z\) represents ____________

A. Gravitational constant
B. Partial constant
C. Electrode constant
D. Electrochemical equivalent

Question 1080:

is often used for vulcanization of rubber ____________

A. Chlorine
B. Hydrogen peroxide
C. Sulphur
D. \(H _{2} SO _{4}\)