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.
Dehydrating agent
Oxidising agent
Bleaching agent
Acid
Precipitant
Correct answer is B
No explanation has been provided for this answer.
Which of the following methods is suitable for the preparation of an insoluble salt?
Action of an acid on a metal
Double decomposition
Neutralisation
Action of an acid on a trioxocarbonate (IV)
Action of an acid on an oxide
Correct answer is B
No explanation has been provided for this answer.
Which of the following is not a property of trioxonitrate (V) salts?
Positive reaction to the brown ring test
Ability to dissolve in cold water
Decomposition on being strongly heated
Production of effervescence with saturated Na2CO3 solution
Evolution of gas with concentrated H2SO4 and copper turnings
Correct answer is D
No explanation has been provided for this answer.
The following oxides react with water except
Na2O
SO3
NO2
CO2
CuO
Correct answer is E
No explanation has been provided for this answer.
AN AQUEOUS SOLUTION IS ACIDIC IF
its pH value is high
it s corrosive
it changes the colour of litmus
it has a bitter taste
it contains more H3O- than OH-
Correct answer is E
No explanation has been provided for this answer.