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 metals burn with brick red flame?
Pb
Ca
Na
Mg
Correct answer is B
No explanation has been provided for this answer.
The gas that can best be collected by downward displacement of air is
Chlorine
Sulphur (IV) oxide
Ammonia
Carbon (IV) oxide
Correct answer is C
No explanation has been provided for this answer.
A burning candle produces water and
Carbon (II) oxide
Carbon (IV) oxide
Oxygen
Hydrogen
Correct answer is B
No explanation has been provided for this answer.
The pair of organic compounds that are isomers is
The pair of organic compounds that are isomers is
Trichloromethane and tetrachloromethane
Ethanol and propane
But-1-ene and but-2-ene
Correct answer is D
No explanation has been provided for this answer.
A characteristic reaction of the compounds with the general formula CnH2n is
Esterification
Polymerization
Decarboxylation
Substitution
Correct answer is B
No explanation has been provided for this answer.