Post Utme Chemistry Questions
Question 16:
The hydrolysis of \(\mathrm{NH}_{4} \mathrm{Cl}\) salt will give
- A Acidic solution
- B Neutral solution
- C Basic solution
- D Hot solution
- E All of the above
Question 17:
The pollutants that are likely to be present in an industrial environment are ____________
- A \(\mathrm{H}_{2} \mathrm{~S}_{,} \mathrm{SO}_{2}\) and oxides of nitrogen
- B \(\mathrm{NH}_{3}, \mathrm{HCl}\) and \(\mathrm{CO}\)
- C \(\mathrm{CO}_{2}, \mathrm{NH}_{3}\), and \(\mathrm{H}_{2} \mathrm{~S}\)
- D Dust, \(\mathrm{NO}\) and \(\mathrm{Cl}_{2}\)
Question 19:
Which of the following gases is the most dangerous pollutant?
- A Hydrogen sulphide
- B \(D\) Carbon (IV) oxide
- C Sulphur (IV) oxide
- D Carbon (II) oxide
Question 20:
Which of the following ions is a pollutant in drinking water even in trace amount?
- A \(\mathrm{Ca}^{2+}\)
- B \(B\) \(\mathrm{Hg}^{2+}\)
- C \(\mathrm{Mg}^{2+}\)
- D \(\mathrm{Fe}^{2+}\)