Post Utme Chemistry Questions
Question 31:
Which of the following relationships between the pressure \(P\), the volume \(V\) and the temperature \(\mathrm{T}\), represents an ideal gas behaviour?
- A \(P \propto V T\)
- B \(P \propto\)
- C \(P V \propto 1\)
- D \(\mathrm{PT} \propto \mathrm{V}\)
Question 32:
Increasing the pressure of a gas, ____________
- A Lowers the average kinetic energy of the molecules
- B Decreases the density of the gas
- C Decreases the temperature of the gas
- D Increases the density of the gas
Question 33:
A quantity of electricity liberates \(3.6 \mathrm{~g}\) of silver from its salt. What mass of aluminium will be liberated from its salt by the same quantity of electricity?
- A 2.7g
- B 1.2 g
- C 0.9 g
- D 0.3 g
Question 34:
The Avogadro's number of \(24 \mathrm{~g}\) of magnesium is the same as that of ____________
- A \(1 \mathrm{~g}\) of hydrogen molecules
- B \(16 \mathrm{~g}\) of oxygen molecules
- C \(32 \mathrm{~g}\) of oxygen molecules
- D \(35.5 \mathrm{~g}\) of chlorine molecules
Question 35:
Which of the following is arranged in order of increasing electronegativity?
- A Chlorine, aluminium, magnesium, phosphorus, sodium
- B Sodium, magnesium, aluminium, phosphorus, chlorine
- C Chlorine, phosphorus, aluminium, magnesium, sodium
- D Sodium, chlorine, phosphorus, magnesium, aluminium