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.
Catalytic hydrogenation of alkenes produces compounds with the general formula
CnH2n+1 OH
CnH2n+1
CnH2n+2
CnH2n-2
Cx(H2O)y
Correct answer is C
In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane
The number of replaceable hydrogen atoms in one acid indicates its
basicity
acidity
alkalinity
reactivity
PH value
Correct answer is A
No explanation has been provided for this answer.
The components of universal indicator solution can best be separated by
chromatography
filtration
evaporation
crystallization
fractional distillation
Correct answer is A
No explanation has been provided for this answer.
The alloy used for metal work and plumbing contains
lead and tin
iron and carbon
copper and tin
aluminium and copper
lead and antimony
Correct answer is A
No explanation has been provided for this answer.
Zinc displaces copper from an aqueous solution of copper (ll) salt because
copper is a transition element
copper is a moderately reactive metal
Zinc and copper have reducing prperties
zinc is more reactive than copper
zinc reacts with both acids and alkalis
Correct answer is D
No explanation has been provided for this answer.