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4146

The dehydration of CH\(_3\)CH\(_2\)CH\(_2\)CH\(_2\)OH will give?

  • A. HC≡CCH\(_2\)CH\(_3\)
  • B. CH\(_2\)≡CH\(_2\)CH\(_3\)
  • C. CH\(_3\)C≡CCH\(_3\)
  • D. CH\(_3\)CH=CHCH\(_3\)
View Answer & Discuss (4) JAMB 2022
4147

When heat is absorbed during a chemical reaction, the reaction is said to be

  • A. thermodynamic
  • B. exothermic
  • C. isothermal
  • D. endothermic
View Answer & Discuss (2) JAMB 2022
4148

Which of the following best represent solid gas mixture?

  • A. milk
  • B. kerosene
  • C. soil
  • D. smoke
View Answer & Discuss (1) JAMB 2022
WAEC offline past questions - with all answers and explanations in one app - Download for free
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
4149

H\(^+\) + OH\(^-\) → H\(_2\)O

The equation above illustrates

  • A. precipitation
  • B. hydration
  • C. hydrolysis
  • D. neutralization
View Answer & Discuss (6) JAMB 2022
4150

Electrons enter into orbitals in order of increasing energy as exemplified by?

  • A. 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^2\)2pz\(^0\)3s\(^0\)
  • B. 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^1\)2pz\(^1\)3s\(^0\)
  • C. 1S\(^2\)2S\(^2\)2PX\(^1\)2py\(^1\)2pz\(^1\)3s\(^1\)
  • D. 1S\(^2\)2S\(^2\)2PX\(^2\)2py\(^2\)2pz\(^0\)3s\(^1\)
View Answer & Discuss (1) JAMB 2022
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709