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Chemistry JAMB Past Questions

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2476

The compound in which the oxidation state of nitrogen is + 3 is

  • A. N\(_2\)O\(_5\)
  • B. N\(_2\)O\(_3\)
  • C. N\(_2\)O\(_4\)
  • D. N\(_2\)O
View Answer & Discuss (2) JAMB 2025
2477

Na\(_2\)X ⇌  2Na\(^+\)  +  X\(^{2-}\)

The bond between Na and X is likely to be

  • A. dative
  • B. ionic
  • C. metallic
  • D. covalent
View Answer & Discuss (3) JAMB 2025
2478

The compound responsible for the pleasant scent of fruits and perfumes belongs to the class of 

  • A. alkanamide
  • B. alkanone
  • C. alkanal
  • D. alkanoate
View Answer & Discuss (4) JAMB 2025
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2479

The most suitable indicator to be used when reacting ethanedioic acid with potassium hydroxide is 

  • A. phenolphthalein
  • B. methyl orange
  • C. methyl red
  • D. methyl purple
View Answer & Discuss (4) JAMB 2025
2480

Electron configuration of Chlorine atom is 

  • A. 1S\(^2\)2S\(^2\)2P\(^6\)3S\(^2\)3P\(^5\)
  • B. 1S\(^2\)2S\(^2\)2P\(^6\)3S\(^2\)3P\(^4\)
  • C. 1S\(^2\)2S\(^2\)2P\(^6\)3S\(^2\)3P\(^6\)
  • D. 1S\(^2\)2S\(^2\)2P\(^5\)3S\(^2\)3P\(^6\)
View Answer & Discuss JAMB 2025
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