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 compounds can be represented by the molecular formula C2H6O?
Propanal
Ethanol
Methanoic acid
Glucose
Correct answer is B
No explanation has been provided for this answer.
Which of the following processes takes place during the production of margarine from vegetable oils?
Esterification
Hydrolysis
Hydrogenation
Saponification
Correct answer is C
No explanation has been provided for this answer.
When concentrated sodium chloride solution is electrolysed using inert electrodes, the products are
oxygen and hydrogen
hydrogen and chlorine
sodium and oxygen
sodium and chlorine
Correct answer is B
No explanation has been provided for this answer.
smaller mass
lower electrical charge
greater stability in solution
stronger tendency to accept electrons
Correct answer is D
No explanation has been provided for this answer.
2.0 mole of Q 3+
2.5 mole of R2+
3.0 mole of T-
4.0 mole of Y-
Correct answer is A
No explanation has been provided for this answer.