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.
An advantage of detergent over soap is that detergents
are readily available
are in powerdered from
are non-biodegradable
lather readily with water
Correct answer is D
Detergent lather readily with water. Soap does not lather readily with water. Soap is a good cleansing agent in soft water, in hard water it forms scum.
Fact and oils are used as raw materials in the following industries except
paint industry
plastic industry
margarine industry
cosmetics industry
Correct answer is B
No explanation has been provided for this answer.
The quantity of electricity required to discharge 1 mole of univalent ion is
9,600 C
48,250 C
96,500 C
193,00 C
Correct answer is C
No explanation has been provided for this answer.
+3 to + 2
+ 4 to + 2
+ 5 to + 2
+ 7 to 2
Correct answer is D
No explanation has been provided for this answer.
Copper is deposited at the cathode
Oxygen is liberated at the anode
it is used for the purification of copper
The solution becomes acidic
Correct answer is C
For purifying impure copper, the anode electrode is impure copper while the cathode electrode is pure copper, but for this question, two different electrodes were used, hence option C is the correct option to this question.