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1021

In the reaction NH3 + H+ → NH4+, the bond formed results from?

  • A. an electron transferred from NH3 + H+
  • B. an electron pair donated by NH3
  • C. an electron pair equally shared
  • D. an electron pair donated by H+
  • E. an electron tarnsferred from H+ to NH3
View Answer & Discuss (9) JAMB 1982
1022

Which of the following CANNOT be obtained by fractional distillation of petroleum?

  • A. Ether
  • B. Methane
  • C. Butane
  • D. Ethene
  • E. Hydrogen
View Answer & Discuss (13) JAMB 1982
1023

In the reaction N2(g) + O(g)
↔ 2NO(g) produced i an increase in the total pressure will?

  • A. cause less nitrogen to be produced in the equilibrium mixture
  • B. cause less nitric oxide to be produced in the equilibrium mixture
  • C. cause more nitric oxide to be produced in the equilibrium mixture
  • D. cause more oxygen to be produced in the equilibrium mixture
  • E. have no effect
View Answer & Discuss (14) JAMB 1982
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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1024
In the chemical reaction A + B \(\to\) C + D, more of D is formed?
  • A. if the concentrated of A is reduced
  • B. if the concentrated of B is reduced
  • C. if the concentrated of C is reduced
  • D. if the concentration of C is increased
  • E. if D is continuously removed from the reaction mixture
View Answer & Discuss (5) JAMB 1982
1025
1.00 g of the oxide of metal X (atomic mass = 64) gave 0.80 g of the metal when reduced with hydrogen.
The formula of the oxide is?
  • A. X2O
  • B. XO
  • C. XO2
  • D. X2O3
  • E. X3O4
View Answer & Discuss (14) JAMB 1982
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