Post Utme Chemistry Questions
Question 281:
Boyle’s law states that pressure varies inversely with:
- A Relative density values
- B Gas volume values
- C Molecular mass values
- D Gas temperature values
Question 282:
In the equilibrium reaction:<br/>2NH₃(g) ⇌ N₂(g) + 3H₂(g)<br/>Increasing pressure favours formation of:
- A Catalyst decomposition products
- B Hydrogen gaseous product
- C Ammonia gaseous product
- D Nitrogen gaseous product
Question 283:
Aluminum resists corrosion because aluminum forms:
- A Permanent nitrate crystals
- B Soluble chloride compounds
- C Acidic hydroxide solutions
- D Protective oxide coating
Question 284:
Increasing concentration generally increases reaction rate because particles:
- A Form weaker compounds
- B Collide more frequently
- C Become chemically stable
- D Lose molecular movement
Question 285:
In the reaction below:<br/>2SO₃(g) ⇌ 2SO₂(g) + O₂(g)<br/>Decreasing pressure favours:
- A Oxygen removal process
- B Catalyst decomposition process
- C Sulfur dioxide formation
- D Sulfur trioxide formation