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.
The basic property of salts used as drying agents is by?
efforescence
high melting point
hygroscopy
low solubility
Correct answer is C
Hygroscopic substances are used to keep products dry or to remove water from an area. They are commonly used in desiccators
Some common examples of hygroscopic substances include: Sodium chloride. Zinc chloride. Calcium chloride
0.32
1.56
3.13
31.25
Correct answer is C
No explanation has been provided for this answer.
The most common method of preparing insoluble salts is by
filtration
decomposition
neutralization
double decomposition
Correct answer is D
No explanation has been provided for this answer.
diatomic
triatomic
tetraatomic
monoatomic
Correct answer is C
No explanation has been provided for this answer.
Which of the following gasses is highly soluble in water at room temperature
ammonia
carbon (IV) oxide
chlorine
nitrogen
Correct answer is A
No explanation has been provided for this answer.