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.
2H+2(g) + 2e- → H2(g)
Na+2(g) + e- → Na(s)
4OH- → 2H2O(l) + O2(g) +4e-
2CI- → CI2(g) + 2e-
Correct answer is A
No explanation has been provided for this answer.
Which of the following compounds is a soapless detergent?
C 12H 25OSO3Na
C 17H 35COONa
C 6H5OH3
C 4H9COOC2H 5
Correct answer is A
No explanation has been provided for this answer.
18.0g mol-1
22.4g mol-1
28.0gmol-1
36.0gmol-1
Correct answer is C
The mass of 0.8dm3 of a gas at s.t.p. is 1.0g :. 22.4dm> of gas at s.t.p. will have a molar mass of 22.4/0.8 = 28.0g mol-1
What is the IUPAC name of CH3CH2COOCH 3?
Ethylethanoate
Methylethanoate
Methylpropanoate
Propylmethanoate
Correct answer is C
No explanation has been provided for this answer.
Glucose gives a brick-red precipitate with Fehling's solution because it is
carbohydrate
an alkanoate
a reducing sugar
a non-electrolyte
Correct answer is C
No explanation has been provided for this answer.