Post Utme Chemistry Questions
Question 606:
In chemical equations, reactants are written:
- A Above the equation
- B After the products
- C Before the arrow
- D Under the catalyst
Question 607:
The reaction CaCO₃ → CaO + COâ‚‚ requires:
- A Adding water
- B Reducing pressure
- C Heating strongly
- D Cooling rapidly
Question 608:
The equation Zn + CuSOâ‚„ → ZnSOâ‚„ + Cu works because zinc:
- A Forms acidic compounds
- B Is more reactive than copper
- C Has lower density values
- D Is less reactive than copper
Question 609:
In the equation 2Hâ‚‚ + Oâ‚‚ → 2Hâ‚‚O, oxygen acts as:
- A Precipitate
- B Reactant
- C Catalyst
- D Product
Question 610:
A precipitate forms because the product is:
- A Insoluble in water
- B Highly reactive
- C Completely gaseous
- D Strongly acidic