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Which of the following solutions will give a precipitate with dilute tetraoxosulphate (V) acid? l....

Chemistry
WAEC 2003

Which of the following solutions will give a precipitate with dilute tetraoxosulphate (V) acid? l. Lead (ll) trioxonitrate (V) solution ll. Barium chloride solution lll. Sodium chloride solution

  • A. l only
  • B. ll only
  • C. l and ll only
  • D. ll and lll only
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Correct Answer: Option C
Explanation

Both i and ii will precipitate with H2SO4, SEE EQUATION BELOW

Pb(NO3)2+H2SO4→PbSO4+2HNO3.

H2SO4 +BaCl2 → BaSO4 + 2HCl

both PbSO4 and BaS04 are slightly solid so they precipitate out of solution as solid

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