Post Utme Chemistry Questions
Question 591:
The reaction HCl + NHâ‚„OH → NHâ‚„Cl + Hâ‚‚O produces:
- A Ammonium chloride
- B Sodium chloride
- C Calcium chloride
- D Ammonium nitrate
Question 592:
The reaction 2NaOH + Hâ‚‚SOâ‚„ → Naâ‚‚SOâ‚„ + 2Hâ‚‚O produces:
- A Sodium chloride
- B Sodium nitrate
- C Sodium sulphate
- D Sodium carbonate
Question 593:
The gas produced when acids react with carbonates turns limewater:
- A Colourless
- B Blue
- C Milky
- D Green
Question 594:
In the reaction 2Na + 2Hâ‚‚O → 2NaOH + Hâ‚‚, bubbles are formed because:
- A Sodium becomes solid
- B Water changes colour
- C Oxygen gas is produced
- D Hydrogen gas is released
Question 595:
Which reaction type usually involves heat and light release?
- A Combustion reaction
- B Double decomposition
- C Neutralization reaction
- D Precipitation reaction