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ChemistryChemistry
11 November, 12:13

Which one of the following compounds is insoluble in water?

a. BaSO4

b. KNO3

c. Na2SO4

d. Li2CO3

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Answers (1)
  1. 11 November, 12:40
    0
    The correct option is;

    a. BaSO4.

    Explanation:

    a. BaSO₄ Insoluble

    From the solubility table, we have all sulfates SO₄ are soluble except those of Sr²⁺, Ag⁺, Ca²⁺, Pb²⁺ Ba²⁺, Hg²⁺

    b. KNO₃ Soluble

    All nitrates are soluble, no exceptions

    c. Na₂SO₄ Soluble

    Sodium sulfate is among the soluble sulfates.

    d. Li₂CO₃ Soluble

    All carbonates are insoluble except those of NH₄⁺ and group IA.
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