Which of the following represents a precipitation reaction?

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Chemistry JAMB 1981

Which of the following represents a precipitation reaction?

  • H2SO4 + NaCl \(\to\) NaHSO4 + HCl
  • Fe +H2SO4 \(\to\) FeSO4 + H2
  • 4HCl + MnO2 \(\to\) MnCl2 + 2H2O + Cl2
  • Na2SO4 + pb(NO3) \(\to\) PbSO4 + 2NaNO checkmark
  • CuO +2HCl \(\to\) Cl2 + H2O

The correct answer is: D

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