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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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2816

What is the ratio of the rate of diffusion of carbon(IV) oxide to that of propane, under the same conditions? [H = 1; C= 12; 0= 161

  • A. 1:01
  • B. 1:10
  • C. 2:01
  • D. 2:03
  • E. 3:01
View Answer & Discuss (13) NECO 2001
2817

How much sodium hydroxide is required to make 250 cm3 of 0.1 molar solution? Na=23; 0=16; H=1]

  • A. 10.0 g
  • B. 4.0g
  • C. 2.0 g
  • D. 1 .0g
  • E. 0.1 g
View Answer & Discuss (4) NECO 2001
2818

The oxidation number of X in \(XO_{4}^{3-}\) is

  • A. 1
  • B. -2
  • C. 3
  • D. 4
  • E. 5
View Answer & Discuss (8) NECO 2001
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2819
The high boiling point of hydrogen fluoride can be explained in terms of
  • A. covalent bonds.
  • B. dative bonds.
  • C. dipole-dipole bonds.
  • D. electrovalent (ionic) bonds
  • E. hydrogen bonds.
View Answer & Discuss (6) NECO 2001
2820
Which of the following is TRUE of a catalyst? I. it alters the activation energy of a reaction
II. it is effective in a reaction but cannot initiate a reaction
III, it affects the equilibrium of a reversible reaction
IV. it affects the overall reaction
  • A. I and II only
  • B. I, II and III only
  • C. II and III only
  • D. II, II and IV only
  • E. III and IV only
View Answer & Discuss (2) NECO 2001
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