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Chemistry JAMB Past Questions

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2141

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 (4) JAMB 2022
2142

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

  • A. fractional crystallization
  • B. fractional distillation
  • C. filtration
  • D. chromatography
View Answer & Discuss (3) JAMB 2022
2143

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 (6) JAMB 2022
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2144

2H\(_2\) + O\(_2\) → 2H\(_2\)O

From the equation above, calculate the volume of unreacted oxygen gas if a mixture of 50cm\(^3\) of hydroden and 75cm\(^3\) of oxygen are involved

  • A. 85cm\(^3\)
  • B. 50cm\(^3\)
  • C. 125cm\(^3\)
  • D. 55cm\(^3\)
View Answer & Discuss (5) JAMB 2022
2145

In which of the following will hydrogen form ionic compound? 

  • A. HCL
  • B. NaH
  • C. NH\(_3\)
  • D. CH\(_4\)
View Answer & Discuss (18) JAMB 2022
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