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4516

Pure water contaminated with quicklime will have a pH of 

  • A. 1
  • B. 6
  • C. 7
  • D. 8
View Answer & Discuss WAEC 2024
4517

The electron configuration of \(_{29}\) Cu is 

  • A. 1S\(^2\) 2S\(^2\) 2P\(^6\) 3S\(^2\) 3P\(^6\) 4S\(^1\) 3d\(^{10}\)
  • B. 1S\(^2\) 2S\(^2\) 2P\(^6\) 3S\(^2\) 3P\(^6\) 4S\(^3\) 3d\(^9\)
  • C. 1S\(^2\) 2S\(^2\) 2P\(^5\) 3S\(^2\) 3P\(^6\) 4S\(^2\) 3d\(^{10}\)
  • D. 1S\(^2\) 2S\(^2\) 2P\(^6\) 3S\(^2\) 3P\(^2\) 4S\(^1\) 3d\(^{10}\)
View Answer & Discuss (4) WAEC 2024
4518

When s and p block elements react, the bond formed is

  • A. electrovalent
  • B. covalent
  • C. metallic
  • D. dative-covalent
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4519

The hardest form of carbon is 

  • A. charcoal
  • B. coke
  • C. diamond
  • D. graphite
View Answer & Discuss (2) WAEC 2024
4520

The metallic bonding in aluminium is strong because of large number of

  • A. delocalized electrons
  • B. immobile electrons
  • C. lone pair electrons
  • D. valence electrons
View Answer & Discuss (2) WAEC 2024
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