Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
Which of the following properties is not characteristic of electrovalent compounds?
formation of crystalline solids
solubility in polar solvents
high vapour pressures
high melting and boiling points
ability to conduct electricity in aqueous solution
Correct answer is C
No explanation has been provided for this answer.
1
2
3
4
11
Correct answer is C
No explanation has been provided for this answer.
Which of the following is not a direct petroleum product?
Methane
Ethanol
Petrol
Vaseline
Kerosene
Correct answer is D
No explanation has been provided for this answer.
Which of the reactions represented by the following equations will take place at room temperature?
C 6 H2O → CO + H2
CuO + H2 → Cu + H2O
N2 + 3H2 → 2NH3
2Na + 2H2O → 2NaOH + H2
2Fe + 3CI2 → 2FeCI3
Correct answer is D
No explanation has been provided for this answer.
When starch undergoes complete enzyme-catalyzed hydrolysis, the resulting product is
glucose
maltose
sucrose
fructose
cellulose
Correct answer is A
No explanation has been provided for this answer.