Waec Chemistry Past Questions For Year 2004
Question 11
Which of the following salts is not prepared by precipitation?
- A. Lead (ll) trioxocarbonate (lV)
- B. Barium trioxocarbonate (IV)
- C. Sodium trioxocarbnate (IV)
- D. Calcium trioxocarbonate (IV)
Question 12
The alloy used extensively in the building industry is
- A. steel
- B. bronze
- C. duralumin
- D. type metal
Question 13
Which of the following pairs of salts undergo hydrolysis?
- A. AlCI3 and NH4CI
- B. AICI3 and NaCI
- C. FeCI3 and KCI
- D. Na2SO4 and K2 SO4
Question 14
The method of collection of gases prepared in the laboratory depend on their
- A. odour and atomicity
- B. colour and odour
- C. atomicity and density
- D. solubility and density
Question 15
A solution of zinc chloride should not be stored in a container made of
- A. tin
- B. copper
- C. aluminium
- D. lead
