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 non-metals reacts most readily with metals?
Carbon
Chlorine
Nitrogen
Phosphorus
Sulphur
Correct answer is B
No explanation has been provided for this answer.
Compound with the general formula CnH\(_{2n+2}\) belong to the_______ group
alkanal
alkane
alkanoate
alkene
alkyne
Correct answer is B
Alkanes have the general formula of CnH2n+2 where n is the number of carbon atoms.
Alkenes have the general formula CnH2n.
The general formula for Alkynes is CnH2n-2.
The process involved in the decomposition of sugar by an enzyme is called
dehydration
esterification
fermentation
polymerization
saponification
Correct answer is C
No explanation has been provided for this answer.
Which of the following equations is NOT balanced?
CH4(g) + 202(9) → CO2(g) + 2H2O(g)
CU(S) + HNO3(aq) → Cu(NO3)2(aq) + 4H2O(I) + NO(g)
2KCIO3(s) → 2KCI(s)+ 3O2(g)
NaH(s) + H2O(1) → NaOH(aq) +H2(g)
Na2SO4(aq) + BaCl2(aq) → BaSO4(s) + 2NaCl(aq)
Correct answer is B
No explanation has been provided for this answer.
A colourless gas with characteristics odour which dissolves in water to form an alkaline solution is
ammonia
carbon(IV)oxide
hydrogen chloride
sulphur (IV) oxide
sulphur (VI) oxide
Correct answer is A
No explanation has been provided for this answer.