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.
When excess ethene is shaken with acidified KMnO4 solution, the product obtained is
ethane
ethanal
ethane - 1, 2 - diol
ethanoic acid
Correct answer is C
No explanation has been provided for this answer.
Polymerization of glucose
Hydrolysis of starch
Fermentation of sugar
Dehydration of carbohydates
Correct answer is B
The enzyme amylase is secreted out of the cells (an exoenzyme) into the surrounding media, catalyzing the breakdown of starch into smaller sugars which can then be absorbed by the cells for use.
The reaction of vegetable oil with a solution of wood ash is
saponification
neutralization
hydrogenation
esterification
Correct answer is A
No explanation has been provided for this answer.
What is the organic product of the reaction of C2H 5OH with excess acidified K 2Cr 2O7(aq)?
CH3COOH
C2H5OC2H5
HCOOCH 3
C2H5CHO
Correct answer is A
No explanation has been provided for this answer.
Which of the following substances could be responsible for the banana taste of a food flavour?
Methylbenzene
Butanol
Ethanol
Pentylethanoate
Correct answer is D
No explanation has been provided for this answer.