Waec Chemistry Past Questions For Year 1995
Question 1
Which of the following cannot be deduced from the electronic configuration of a transition metal?
- A. Possession of magnetic property
- B. Ability to form complex ions
- C. Position in the Periodic Table
- D. Variable oxidation states
- E. Physical properties of the metal
Question 2
Which of the following molecules is linear in shape?
- A. CH4
- B. H2O
- C. NH3
- D. H2S
- E. CI2
Question 3
If a solid has a low melting point and dissolves readily in benzene, it would probably
- A. contain strong electrostatic forces of attraction
- B. conduct electricity in the molten state
- C. dissolve in water
- D. have covalent bonding
- E. absorb moisture on exposure to air
Question 4
A positive brown ring test indicates the presence of
- A. NO 3
- B. Fe 3+
- C. SO 2-3
- D. CU+
- E. NO- 2
Question 5
The most suitable method for preparing lead (ll) chloride is by
- A. action of dilute HCI on PbSO 4
- B. acts of dilute HCI on lead
- C. action of dilute HCI on PbCO3
- D. bubbling chlorine into a solution of Pb(NO3)2
- E. mixing aqueous solutions Pb(NO3)2 and NaCI.
