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.
The processes which return carbon (IV) oxide to the atmosphere include
respiration, decay and combustion
photosynthesis, respiration and transpiration
ozone depletion, combustion and decay
photosynthesis, decay and respiration
Correct answer is A
No explanation has been provided for this answer.
15.3cm3
87.3cm3
552.0cm3
97.0cm3
Correct answer is D
(V1/T1) = (V2/T2)
T1 = 3+273 = 276K
∴ (92/276) = (V2/291)
T2 = 18 + 273 = 291K
V2 (92 * 291)/276
= 97.0\(cm^3\)
Which of the following chloride would exhibit the least ionic character?
MgCl2
CaCl2
LiCl
AlCl3
Correct answer is D
No explanation has been provided for this answer.
Which of the following statement is true of a proton?
The mass of a proton is 1840 times the mass of electron
The total mass of the protons in a particular nucleus is always half the nuclear size
The mass of a proton is one - twelfth the molar mass of carbon
The mass of a proton is 1.0008g
Correct answer is D
No explanation has been provided for this answer.
Cl-
NO3-
SO32-
SO42-
Correct answer is C
No explanation has been provided for this answer.