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.
The enzyme used in the hydrolysis of starch to dextrin and maltose is
Zymase
Sucrase
Amylase
Lactase
Correct answer is C
No explanation has been provided for this answer.
The condition required for corrosion to take place is the presence of
Oxygen and Carbon (IV) oxide
Water and Oxygen
Water and Carbon (IV) oxide and Oxygen
Water and Carbon (IV) oxide
Correct answer is B
The conditions necessary for corrosion to take place are; 1 presence of oxygen 2 moisture(water)
In an electrochemical cell, polarization is caused by
Oxygen
Hydrogen
Tetraoxosulphate(IV) acid
Chlorine
Correct answer is B
No explanation has been provided for this answer.
liberated, -\(\Delta\)H
liberated, +\(\Delta\)H
absorbed, -\(\Delta\)H
absorbed, +\(\Delta\)H
absorbed, +\(\Delta\)G
Correct answer is D
No explanation has been provided for this answer.
Which of the following classes of organic compounds undergoes rapid oxidation with bromine water?
alcohols
alkenes
carboxylic acids
esters
alkanes
Correct answer is B
No explanation has been provided for this answer.