Past Questions And Answers

Note: You Can Select Post UTME Schools Name Below The Exam Year.
18141

Body floats in fluid when its …………………

  • A. Displaces its own volume of the liquid (fluid)
  • B. Displaces its own weight of the fluid
  • C. Displace its own density of the fluid
  • D. Is no longer subjected to gravity
View Discussion (0)JAMB 2015
18142

The relative relief of the area is slightly below

  • A. 75m
  • B. 105m
  • C. 485m
  • D. 575m
View Discussion (0)JAMB 1994
18143

A direct result of greenhouse gas accumulation in the troposphere is?

  • A. global warming
  • B. increased sea surges
  • C. ozone layer depletion
  • D. the drowing of coastlands
View Discussion (0)JAMB 2006
18144

The Aro age-grade system in Igbo land was

  • A. a religious organization
  • B. a commercial organization
  • C. a political organization
  • D. an imperial organization
View Discussion (0)JAMB 2010
18145

(a) Name one product of destructive distillation of coal that is (i) solid (ii) liquid; (iii) gas.

(b) (i) What is the major component of synthetic gas? (ii) Give one reason why synthetic gas is not a major source of air pollution.

(c) (i) Write a balanced chemical equation for the complete combustion of carbon. (ii) State two: I. physical; II. chemical properties of the product in (c)(i).

(d) (i) Name two allotropes of carbon that are I. crystalline, II. amorphous. (ii) State one use of each of the allotropes named in (d)(i).

(e) (i) By means of balanced chemical equations only, outline the process of manufacture of H\(_2\)SO\(_4\), by contact process.

(ii) State the function of H\(_2\)SO\(_4\) in each of the following reaction equations:

I. C\(_2\)H\(_5\)OH\(_{2(l)}\) \(\to\) C\(_2\)H\(_{4(g)}\);

II. Pb(NO\(_{3(g)}\) + H\(_2\)SO\(_{4(g)}\) —> PbSO\(_{4(s)}\) + 2HNO\(_{3(aq)}\)

View Discussion (0)WAEC 2010 THEORY
18146

In which of the following organisms would glycogen be stored?

  • A. Spirogyra
  • B. Chlamydomonas
  • C. Rattus
  • D. Magnifera
View Discussion (0)JAMB 1993
18147

(a) (i) Write an equation for the reaction by which sulphur dioxide in solution could be converted to tetraoxosulphate (VI) acid.

(ii) Stateone test to confirm the conversion of sulphur dioxide to tetraoxosulphate (VI) acid.

(iii) State the reaction of concentrated tetraoxosulphate (VI) acid with:

(I) oxalic acid;

(II) copper.

(iv) What property of concentrated tetraoxosulphate (VI) acid does each of the reactions stated in(a)(iii) illustrate?

(b) (i) Explainbriefly why water is referred to as a universal solvent.

(ii) Give one chemical test for water.

(c) (i) What is themajor component of synthetic gas?

(ii) Give one reason why synthetic gas isnot amajor source of air pollution.

(d) Nameone product of destructive distillation of coal that is:

(i) solid;

(ii) liquid;

(iii) gas.

(e) (i) Write a balanced chemical equation for the complete combustion of carbon.

(ii) Stateone:

(I) physical;

(II) chemical property of the products in(e)(i).

View Discussion (0)WAEC 2019 THEORY
18148

Which of the following binary operations is not commutative?

  • A. \(a * b = \frac{1}{a} + \frac{1}{b}\)
  • B. \(a * b = a + b - ab\)
  • C. \(a * b = 2a + 2b + ab\)
  • D. \(a * b = a - b + ab\)
View Discussion (0)WAEC 2009 OBJ
18149

Darius became convinced of God's power through Daniel's

  • A. constant praying and fasting
  • B. interpretation of mystries
  • C. faithfulness and steadfastness
  • D. fearlessness in the face of difficulties
View Discussion (0)WAEC 2012 OBJ
18150

Voyage refers to travelling by

  • A. air
  • B. water
  • C. rail
  • D. road
View Discussion (0)POST UTME UNILORIN