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Chemistry JAMB Past Questions

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581

The graph above demonstrate the effect of?

  • A. surface area on the rate of reaction
  • B. catalyst on the rate of reaction
  • C. pressure on the rate reaction
  • D. concentration on the rate of reaction
View Answer & Discuss (4) JAMB 2010
582

2H2(g) + O2(g) ⇌ 2H2O(g) ΔH = -ve
what happens to the equilibrium constant of the reaction above if the temperature is increased?

  • A. it is unaffected
  • B. it becomes zero
  • C. it decrease
  • D. it increase
View Answer & Discuss (7) JAMB 2010
583

To a solution of an unknown compound, a little dilute tetraoxosulphate (VI) acid was added with some freshly prepared iron (II) tetraoxosulphate (VI) solution. The brown ring observed after the addition of a stream of concentrated tetraoxosulphate (VI) acid confirmed the presence of?

  • A. CO\(^{2-}_{3}\)
  • B. Cl-
  • C. SO\(_{3}^{2-}\)
  • D. NO\(^{2-}_{3}\)
View Answer & Discuss (6) JAMB 2010
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584

Which of the following is used in rocket fuels?

  • A. HNO3
  • B. CH3COOH
  • C. H2SO4
  • D. HCl
View Answer & Discuss (11) JAMB 2010
585

A constituent common to bronze and solder is?

  • A. lead
  • B. silver
  • C. copper
  • D. tin
View Answer & Discuss (6) JAMB 2010
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