Post Utme Chemistry Questions
Question 666:
The equation SO₃ + Hâ‚‚O → Hâ‚‚SOâ‚„ produces:
- A Hydrochloric acid
- B Sulphuric acid
- C Carbonic acid
- D Nitric acid
Question 667:
Which factor decreases gas pressure in a closed container?
- A Increasing gas particle number
- B Increasing particle collisions
- C Reducing container volume size
- D Lowering gas temperature greatly
Question 668:
The standard pressure used at STP is:
- A Two atmosphere pressure
- B Ten atmosphere pressure
- C One atmosphere pressure
- D Five atmosphere pressure
Question 669:
The equation COâ‚‚ + Hâ‚‚O → Hâ‚‚CO₃ forms:
- A Carbonic acid
- B Hydrochloric acid
- C Nitric acid
- D Sulphuric acid
Question 670:
The reaction 2Na + 2HCl → 2NaCl + Hâ‚‚ is very vigorous because sodium is:
- A A noble gas element
- B Highly reactive metal
- C Less reactive than hydrogen
- D Completely non-reactive