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.
If glucose is heated with concentration tetraoxosulphate (VI) acid, it will be dehydrated to
carbon
carbon (IV) oxide
ethene
ethanol
Correct answer is A
If glucose is heated with concentrated tetraoxosulphate(VI)acid, it will be dehydrated to carbon.
If the silver mirror test is positive, it indicates the presence of an
alkyne
alkanol
alkanone
alkanal
Correct answer is D
Alkanals give a positive result for the silver mirror test(Tollen's reagent).
The type of isomerism shown by cis- and trans- isomers is
optical isomerism
positional isomerism
functional isomerism
geometrical isomerism
Correct answer is D
The type of isomerism shown by the cis- and trans- isomers is geometrical isomerism
The most common ores of iron include
haematite, malachite and limonite
chalcocite, calamine and bornite
magnetite, haematite and limonite
magnetite, chalcocite and bornite
Correct answer is C
The most common ores of iron are magnetic, haematite and limonite
Leads is used for making bullets and lead shots because of its
resistance to corrosion
low melting point
high density
flexibility
Correct answer is C
Lead is used for making bullets and lead shots because of its high density.