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Chemistry 2015 WAEC Past Questions

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11
Which of the following halogens is solid at room temperature?
  • A. Bromine
  • B. Chlorine
  • C. Flourine
  • D. Iodine
View Answer & Discuss (1) WAEC 2015
12
The alkaline earth metals have similar chemical properties because________?
  • A. They are in the same period
  • B. Their salts are colourless
  • C. They have the same number of valence electrons
  • D. They are very reactive
View Answer & Discuss (1) WAEC 2015
13
The number of unpaired electrons in an atom of an element 8Q is _______?
  • A. 2
  • B. 4
  • C. 6
  • D. 8
View Answer & Discuss (2) WAEC 2015
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
14
The bond formed when ammonia reacts with hydrogen ion to form ammonium ion is
  • A. Covalent
  • B. Dative
  • C. Hydrogen bond
  • D. Ionic
View Answer & Discuss WAEC 2015
15
To which group and period respectively does an element with 15 electrons belong?
  • A. 3 and 3
  • B. 3 and 5
  • C. 5 and 3
  • D. 5 and 5
View Answer & Discuss (6) WAEC 2015
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts