Post Utme Chemistry Past Questions and Answers

Question 566:

Which of the following units would not be used in expressing density?

A. G⁴
B. G/cm²
C. G/m
D. G/cm

Question 567:

Candle wax melting units is an example of which of the following?

A. Physical property
B. Chemical property
C. Physical change
D. Chemical change

Question 568:

What is the amount of energy given out when an atom or ion gains an extra electron?

A. Electron energy
B. Electron infinity
C. Atomic energy
D. Energy of addition

Question 569:

Which of the following is false regarding the reactants of a chemical reaction?

A. Are Always on the left side of the chemical duration
B. They are the substances obtained
C. A plus sign to is used to separate one from the other
D. Are substances that interact with the other

Question 570:

Which of the following is a substance that absorbs water from the air to the point where it becomes a solution?

A. Efflorescent substance
B. Hygroscopic substance
C. Effervescent substance
D. Deliquescent substance