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.
Ethanol reacts with concentrated tetraoxosulphate (VI) acid at a temperature above 170 oC to form
ethanone
ethene
ethyne
ethanal
Correct answer is B
No explanation has been provided for this answer.
2 - methyl propan -2- ol is an example of a
primary alkanol
secondary alkanol
tertiary alkanol
quartenary alkanol
Correct answer is C
No explanation has been provided for this answer.
The saponification of an alkanoate to produce soap and alkanol involves
dehydration
esterification
hydrolysis
oxidation
Correct answer is C
No explanation has been provided for this answer.
CH2O
C3H6O3
C6H6O3
C6H12O6
Correct answer is D
No explanation has been provided for this answer.
glucose and starch
maltose and starch
sucrose and fructose
galactose and starch
Correct answer is B
Glucose = C\(_6\)(H\(_2\)O)\(_6\)
= C\(_6\)H\(_{12}\)O\(_6\)
Maltose = C\(_{12}\) (H\(_2\)O)\(_{11}\)
= C\(_{12}\)H\(_{22}\)O\(_{11}\)
Starch = C\(_6\) (H\(_2\)O)\(_5\)
= C\(_6\)H\(_{10}\)O\(_5\)
Sucrose = C\(_{12}\) (H\(_2\)O)\(_{11}\)
= C\(_{12}\)H\(_{22}\)O\(_{11}\)
Fructose = C\(_6\)(H\(_2\)O)\(_6\)
= C\(_6\)H\(_{12}\)O\(_6\)