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 number of hydroxonium ions produced by one molecule of an acid in aqueous solution is its
basicity
acid strength
pH
concentration
Correct answer is A
The basicity of an acid is the number of replaceable Hydrogen ions, \(H^+\), or Hydroxonium ion, \(H_{3}O^{+}\) in one molecule of the acid.
Which of the following will produce a solution with pH less than 7 at equivalent point?
HNO 3 +NaOH
H 2SO 4 + KOH
HCL +Mg (OH) 2
HNO 3 + KOH
Correct answer is C
No explanation has been provided for this answer.
Which of the following pollutants is associated with brain damage?
Carbon (ll) oxide
Radioactive fallout
Biodegradable waste
Sulphus (lV) oxide
Correct answer is A
No explanation has been provided for this answer.
1.00g
10.00g
12.25g
122.50g
Correct answer is D
No explanation has been provided for this answer.
The solubilites of different solutes in a given solvent can be compared by
plotting their solubility curves on separete axes
plotting their solubility curves on the same axes
plotting some of the solubility curves on the x-axis and others on the y-axis
plotting their solubility curves on the x-axis only
Correct answer is B
No explanation has been provided for this answer.