• Q4 ans A

  • Assume equal volumes of both are mixed.

    [Ba2+][SO42-] = (0.01v/2v)(x*v/2v)


    Also we need to find concentration of H2SO4 not [SO4 2-]. One equivalent of acid gives 2 ions.

    Use the following condition :

    1/4(0.01*x)> K_sp. (For precipitation)

    We can find out x from this.

    Answer will be x/2. So the lowest concentration amongst given options which is above x/2 should be the correct answer.

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