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Chemistry 1988 JAMB Past Questions

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6

What volume of a 0.1 M H\(_3\)PO\(_4\) will be required to neutralize 45.0 cm\(^3\) of a 0.2 M NaOH?

  • A. 10.0 cm3
  • B. 20.0 cm3
  • C. 27.0 cm3
  • D. 30.0 cm3
View Answer & Discuss (8) JAMB 1988
7
Which of the following substances is a basic salt?
  • A. Na2CO3
  • B. Mg(OH)CI
  • C. NaHCO3
  • D. KSO4.AI2(SO4)3,24H2O
View Answer & Discuss (8) JAMB 1988
8
Which of the following acts both s a reducing and an oxidizing agent?
  • A. H2
  • B. SO2
  • C. H2S
  • D. C
View Answer & Discuss (2) JAMB 1988
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9

Which of the following reactions takes place in the cathode compartment during the electrolysis of copper (II) chloride solution?

  • A. Cu2+ + 2e- → Cu(s)
  • B. 2Cl- -2e → Cl2
  • C. Cu(s) -2e → Cu2+(aq)
  • D. Cu2+(aq) + 2Cl-(aq) → CuCl2(aq)
View Answer & Discuss (2) JAMB 1988
10
A mixture of starch solution and potassium iodide was placed in a test tube. On adding dilute tetraoxosulphate (lV) acid and then K2Cr2O7 solutions, a blue-black colour was produced. In this reaction, the?
  • A. iodide is oxidized
  • B. tetraoxosulphate (Vl) acid acts as an oxidizing agent
  • C. starch has been oxidized
  • D. K2Cr2O7 is oxidized
View Answer & Discuss (8) JAMB 1988
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