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 method is used for the purification of copper from its ore?
distillation
electrochemical
electrolysis
neutralization
reduction
Correct answer is C
No explanation has been provided for this answer.
0.01
0.05
0.1
0.5
2.8
Correct answer is B
No explanation has been provided for this answer.
\( ^{\text{760 x 22.4 x 308}} \text{750 x 273x 35.5} dm^3 \)
\( ^{\text{760 x 22.4 x 308}} \text{750 x 273}^x dm^3 \)
\( ^{\text{750 x 22.4 x 35.5}} \text{760 x 273dm3} \)
\( ^{\text{760 x 22.4 x 35.5}} \text{750x22.3x273} \)
\( ^{\text{760 x 22.4 x 35.5}} \text{750 x 308dm3} \)
Correct answer is B
No explanation has been provided for this answer.
How many Faradays of electricity are required to liberate 9g of aluminium? [Al = 27]
0.1
0.3
1
2.7
3
Correct answer is C
No explanation has been provided for this answer.
Which metal bromide is widely used in photography?
calcium bromide
magnesium bromide
potassium bromide
silver bromide
sodium bromide
Correct answer is D
No explanation has been provided for this answer.