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Chemistry 2007 WAEC Past Questions

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WAEC offline past questions - with all answers and explanations in one app - Download for free
1

When sodium atom form the ion Na+,

  • A. it gains one proton
  • B. it achieves a noble gas configuration
  • C. its atomic number increases
  • D. it gains one electron
View Answer & Discuss (7) WAEC 2007
2
Which of the following statements about rare gases are correct?
  • A. Their outermost shells are fully filled
  • B. They are generally unreactive
  • C. Their outermost shells are partially filled
  • D. They have lone pair of
View Answer & Discuss (3) WAEC 2007
3
Which of the following properties is characteristic of the halogens?
  • A. Ability to accept electrons readily
  • B. Ability to donate electrons readily
  • C. Ability to from basic oxides
  • D. Formation of coloured compounds
View Answer & Discuss WAEC 2007
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4
In which of the following atoms is the ionic radius larger than the atomic radius? [11 Na, 12Mg,13AI,17CI]
  • A. Aluminium
  • B. Chlorine
  • C. Magnesium
  • D. Sodium
View Answer & Discuss WAEC 2007
5
A transition metal would be expected to
  • A. from oxides with different formulae
  • B. have strong oxidizing ability
  • C. have low density
  • D. have an atomic structure with an incomplete outermost shell
View Answer & Discuss WAEC 2007
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709