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Chemistry JAMB Past Questions

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
1461
In an equilibrium reaction, which of the following conditions indicates that maximum yield of the product will be obtained?
  • A. Equilibrium constant is very large
  • B. ∆H - T∆S = O
  • C. ∆ H > T ∆ S
  • D. Equilibrium constant is less than zero
View Answer & Discuss (10) JAMB 2014
1462
In a chemical reaction, the change in concentration of a reactant with time is
  • A. entropy of reaction
  • B. enthalpy of reaction
  • C. rate of reaction
  • D. order of reaction
View Answer & Discuss JAMB 2014
1463
Fluorine does not occur in the free state in nature because
  • A. it is a poisonous gas
  • B. it belongs to the halogen family
  • C. it is inert
  • D. of its high reactivity
View Answer & Discuss (3) JAMB 2014
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1464

In the extraction of sodium from fused sodium chloride, the anode is made of platinum because

  • A. sodium is formed at the anode
  • B. chlorine is formed at the anode
  • C. sodium does not react with platinum
  • D. chlorine does not react with platinum
View Answer & Discuss (14) JAMB 2014
1465

In the electrolytic extraction of calcium from calcium chloride, the cathode is

  • A. zinc
  • B. graphite
  • C. platinum
  • D. iron
View Answer & Discuss (14) JAMB 2014
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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