Post Utme Chemistry Questions
Question 631:
Burning fuels usually produces reactions that are:
- A Endothermic
- B Reversible only
- C Neutral always
- D Exothermic
Question 632:
The equation CHâ‚„ + 2Oâ‚‚ → COâ‚‚ + 2Hâ‚‚O shows methane undergoing:
- A Complete combustion
- B Double displacement
- C Decomposition process
- D Neutralization process
Question 633:
The formula used to calculate particles from moles is:
- A N = P × T
- B N = n/L
- C N = m × D
- D N = n × L
Question 634:
The formula used to calculate empirical formula ratio involves:
- A Dividing by smallest mole value
- B Subtracting proton numbers
- C Multiplying by atomic masses
- D Dividing by gas pressure
Question 635:
Polyethene is produced mainly from:
- A Ethene monomer molecules
- B Methane hydrocarbon molecules
- C Butane fuel molecules
- D Propane gaseous molecules