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4136

A colored gas that is known to be poisonous and can readily damage the mucous lining of the lungs is?

  • A. hydrogen sulphide
  • B. carbon(ii)oxide
  • C. chlorine
  • D. sulphur(iv)oxide
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4137

In order to electroplate spoon with silver, the arrangement of the electrolytic cell is?

  • A. the anode is a silver rod and the cathode is the spoon
  • B. the anode is the spoon and the cathode is a silver rod
  • C. the electrolyte is silver trioxonitrate(v)( solution and the cathode is a silver rod.
  • D. the electrolyte is silver trioxonitrate(v) solution and the anode is the spoon
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4138

An organic compound which decolorizes bromine water is likely to be?

  • A. C\(_3\)H\(_8\)
  • B. C\(_2\)H\(_6\)
  • C. C\(_4\)H\(_10\)
  • D. C\(_2\)H\(_4\)
View Answer & Discuss (1) JAMB 2022
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4139

Crude petroleum is converted to useful products by the process of?

  • A. fractional crystallization
  • B. fractional distillation
  • C. filtration
  • D. chromatography
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4140

An organic compound contains 69% carbon, 15.3% hydrogen and 30.7% oxygen. Calculate the the empirical formula [C=12, H = 1, O = 16]

  • A. C\(_4\)H\(_12\)O
  • B. C\(_3\)H\(_9\)O
  • C. C\(_4\)H\(_9\)O
  • D. C\(_3\)H\(_8\)O
View Answer & Discuss (1) JAMB 2022
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