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Chemistry JAMB Past Questions

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1026
The production of ammonia by the haber process may be represented by the equilibrium equation N2(g) + 3H2(g) ↔ 2NH3 ∆H = -22KJ. Therefore the production of ammonia will be favoured by?
  • A. only high pressure
  • B. only high temperature
  • C. a combination of high temperature and low pressure
  • D. a combination of low temperature and high pressure
  • E. low pressure
View Answer & Discuss (5) JAMB 1982
1027
Which of the following represents ethyl ethanonate?
  • A. CH3CH2CO2CH3
  • B. (CH3CO2)2O
  • C. CH3CH2CO2CH2CH3
  • D. CH3CO2CH2CH3
  • E. CH3CH2COCH2CH3
View Answer & Discuss (9) JAMB 1982
1028

Which of the following equations represents an oxidizing action of sulphur dioxide?

  • A. SO2 + 2HNO2 → H2SO4 + 2NO2 + heat
  • B. 2SO2 + 2H2O + O2 → 2H2SO4
  • C. SO2 + 2H2O + CI2 → H2SO4 + 2HCI
  • D. SO2 + 2H2S → 3S + 2H2O
  • E. K2Cr2O7 + H2SO4 + 3SO2 → K2SO4 + Cr2(SO4)3 + H2O
View Answer & Discuss (8) JAMB 1982
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1029
If the rate of diffusion of oxygen gas is taken as 1, what will be rated of diffusion of methane whose relative molar mass is 16?
  • A. 2.0
  • B. 1.8
  • C. 1.4
  • D. 1.0
  • E. 0.5
View Answer & Discuss (17) JAMB 1982
1030
If the temperature of a gas is increased?
  • A. the kinetic energy of the emolecules will decrease
  • B. the pressure will decrease if the volume is constant
  • C. the gas will occupy a greater volume if the pressure is constant
  • D. the mass of the gas will decrease
  • E. the pressure and volume will increase
View Answer & Discuss (16) JAMB 1982
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