Past Questions And Answers
The reduction half equation of the following reaction is:
\(Zn_{(s)} + CuSO_{4(aq)} → ZnSO_{4(aq)} + Cu_{(s)}\)
- A. \(Zn_{(s)} → Zn^{2+}_{(aq)} + 2e^-\)
- B. \(CuSO_{4(s)} + H_2O_{(l)}\) → \(Cu^{2+}_{(aq)}\) + \(SO_{4(aq)}^{2-}\)
- C. \(Cu^{2+}_{(aq)} + 2e^- → Cu_{(s)}\)
- D. \(Cu^{2+}_{(aq)} + e^- → Cu_{(s)}\)
The main feature of a supermarket is the sale of
- A) Office equipment only
- B) Food stuff only
- C) General household goods
- D) Building materials
Vitamin K deficiency in farm animals causes
- A. night blindness
- B. sterility in both sexes
- C. delayed blood clotting
- D. delayed ovulation
Organic components of the soil include all the following except
- A. humus
- B. animal remains
- C. micro-organisms
- D. rock pedestals
In the diagram, PQR is a triangle.|PQ| = |PR|, |PS| = |SQ| and PRS = 50°. What is the size of ∠PSQ?
- A. 75°
- B. 80°
- C. 85°
- D. 95°
(a) Explain diffusion
(b) State one factor that can affect the rate of diffusion.
View Discussion (0)WAEC 2002 THEORYWhich branch of accounting is most concerned with the collection of detailed financial data for use in planning and controlling an entity?
- A) Financial accounting
- B) Management accounting
- C) Financial management
- D) Auditing
In an electric circuit, an inductor of inductance 0.5 H and resistance 50 Ω is connected to an alternating current source of frequency 60 Hz. Calculate the impedance of the circuit.
- A. 50.0 Ω
- B. 450.5 Ω
- C. 195.0 Ω
- D. 1950.1 Ω
The diagram below is an illustration of some parts of a mammalian ear. Study it and answer this question.
The middle ear is connected to the pharynx by the part labelled
- A. I
- B. II
- C. III
- D. IV
what are inferior goods? These are goods
- A. that are generally in short supply
- B. that are no longer in demand
- C. whose demand falls as income increase
- D. whose price falls as demand increases