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Chemistry 1994 JAMB Past Questions

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11

Which of the following physical properties decreases down a group in the periodic table?

  • A. Atomic radius
  • B. Ionic radius
  • C. Electropositivity
  • D. Electronegativity
View Answer & Discuss (10) JAMB 1994
12
Element X, Y and Z belong to a groups I, V and VII respectively. Which of the following is TRUE about the bond types of XZ and YZ3?
  • A. Both are electrovalent
  • B. Both are covalent
  • C. XZ is electrovalent and YZ3 is covalent
  • D. XZ is covalent and YZ3 is electrovalent
View Answer & Discuss (2) JAMB 1994
13
A solid that absorbs water from he atmosphere and forms an aqueous solution is?
  • A. hydrophilic
  • B. efforescent
  • C. deliquescent
  • D. hygroscopic
View Answer & Discuss (1) JAMB 1994
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14

A major effect of oil pollution in coastal waters is the?

  • A. destruction of marine life
  • B. desalination of the water
  • C. increase in the acidity of the water
  • D. detoxification of the water
View Answer & Discuss (6) JAMB 1994
15
Sodium chloride has no solubility product value because of its?
  • A. saline nature
  • B. high solubility
  • C. low solubility
  • D. insolubility
View Answer & Discuss (1) JAMB 1994
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