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6

Diamond does not conduct electricity because it?

  • A. has no free valence electrons
  • B. is a giant molecule
  • C. contains no bonded electrons
  • D. is a solid at room temperature
View Answer & Discuss (1) WAEC 2008
7

The gas which causes global warming is?

  • A. O\(_{2}\)
  • B. CO\(_{2}\)
  • C. N\(_{2}\)
  • D. He
View Answer & Discuss (9) JAMB 2021
8

Oxygen is absent in?

  • A. Kerosene
  • B. Soil
  • C. Glass
  • D. Cement
View Answer & Discuss (20) JAMB 2021
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9

220g of carbon dioxide contains ----- moles

  • A. 5
  • B. 6
  • C. 3
  • D. 4
View Answer & Discuss (9) JAMB 2021
10

Addition of charcoal to the filter bed of sand during water treatment for township supply is to?

  • A. prevent goiter
  • B. prevent tooth decay
  • C. remove odour
  • D. kill germs
View Answer & Discuss (5) JAMB 2022
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