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Chemistry 2015 JAMB Past Questions

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51
The substance that is used in the steel industry for the removal of carbon. Sulphur and phosphorus impurities from pig iron is
  • A. oxygen
  • B. chlorine
  • C. nitrogen
  • D. hydrogen
View Answer & Discuss (1) JAMB 2015
52

If glucose is heated with concentrated tetraoxosulphate(vi)acid, it will be dehydrated to?

  • A. carbon
  • B. carbon(iv)oxide
  • C. ethane
  • D. ethanol
View Answer & Discuss (2) JAMB 2015
53
Which of the following compounds can be represented by the molecular formula C2 H6O?
  • A. propanal
  • B. ethanol
  • C. methanoic acid
  • D. glucose
View Answer & Discuss (3) JAMB 2015
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54
what is the pH of 0.00lmoldm3 solution of sodium hydroxide
  • A. 14
  • B. 13
  • C. 12
  • D. 11
View Answer & Discuss JAMB 2015
55
N2O4(g)→ 2NO2(g)

In the endothermic reaction above, more products formed will be favored by
  • A. A constant values
  • B. an increase in pressure
  • C. a decrease pressure
  • D. a decrease volume
View Answer & Discuss JAMB 2015
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