Waec Chemistry Past Questions For Year 2010
Question 16
Which of the following apparatuses can be used to measure accurately a specific volume of a liquid?
- A. Beaker
- B. Conical flask
- C. Measuring cylinder
- D. Pipette
Question 17
What is the volume occupied by 2 moles of ammonia at s.t.p?
- A. 44.8 dm-3
- B. 22.4 dm-3
- C. 11.2 dm-3
- D. 5.6 dm-3
Question 18
Which of the following chlorides is insoluble in water?
- A. AgCI
- B. KCI
- C. NH4CI
- D. ZnCI2
Question 19
The following substances are normal salts except
- A. AI(NO3)3
- B. FeSO4
- C. Mg(OH)NO3
- D. NaCI
Question 20
Which of the following equimolar solutions would have the highest conductivity?
- A. NH4NO3(aq)
- B. NaNO3(aq)
- C. Mg(NO3)2(aq)
- D. AI(NO3)3(aq)
