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.
206.0 g
103.0 g
98.1 g
51.5 g
Correct answer is B
1 mole of H2SO4 ≈ 98 gms
0.175 dm3 of 6.0 m H2SO4
1000 cm3 ≈ dm3
(0.175) / (1000) of 6.0 m H2SO4
0.000175 x 6 x 98 ≈ 0.1029 gms
1 dm3 - 1000 cm3
∴ 0.1029 x 1000 = 103 gms
Which of these is an acid salt?
K2SO4-.AI2(SO4)3.24H2O
CuCO3.Cu(OH)2
NaHS
CaOCI2-
Correct answer is C
No explanation has been provided for this answer.
Arrange HCI, CH3COOH, C6H5CH3 in order of increasing conductivity.
HCI, CH3COOH, C6H5CH3
C6H5CH3, HCI, CH3COOH
C6H5CH3, CH3COOH, HCI
CH3COOH, C6H5CH3, HCI
Correct answer is C
No explanation has been provided for this answer.
1.6 x 10-4
6.3 x 10-11
6.3 x 10-4
1.6 x 10-11
Correct answer is B
No explanation has been provided for this answer.
An emulsion paint consists of ?
gas or liquid particles dispersed in liguid
liquid particles dispersed in liquid
solid particles dispersed in liquid
solid particles dispersed in solid
Correct answer is B
An emulsion is a mixture of two immiscible liquids, in emulsion one liquid is dispersed in another liquid. Examples are paint, milk, mayonnaise, cream, etc.