Post Utme Chemistry Past Questions and Answers

Question 636:

Sucrose is made up of ____________

A. Glucose and glucose
B. Glucose and fructose
C. Fructose and fructose
D. Galactose and glucose

Question 637:

Calcium atom ionizes by ____________

A. Gaining two electrons
B. Losing two electrons
C. Sharing two electrons
D. Gaining two protons

Question 638:

22 . Which of the following halogens is the most reactive?

A. F2
B. Br2
C. 12
D. Cl2

Question 639:

Exhaust fumes discharged from a smoke vehicle gradually become invisible as a result of ____________

A. Diffusion
B. Combustion
C. Absorption
D. Emission

Question 640:

An exothermic reaction is one which involves ____________

A. Attainment of dynamic equilibrium
B. Loss of heat to the surrounding
C. Evolution of gas as it proceeds
D. Positive change in value of enthalpy