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A mixture of CuS (molecular weight = M(1...

A mixture of CuS (molecular weight = `M_(1)`) and `Cu_(2)S` (molecular weight `=M_(2)`) is oxidised by `KMnO_(4)` (molecular weight `=M_(3)`) in acidic medium, where the product obtained are `Cu^(2+),Mn^(2+)` and `SO_(2)`. Find the equivalent weight of CuS, `Cu_(2)S` and `KMnO_(4)` respectively.

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The correct Answer is:
`(M_(1))/(6), (M_(2))/(8), (M_(3))/(5)`
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RESONANCE-EQUIVALENT CONCEPT & TITRATIONS-Exercise -1 (Part-I )
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  10. It requires 40mL of 1 M Ce^(4+) to titrate 20mL of 1 M Sn^(2+) " to "S...

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  11. 25 mL of a solution of Fe^(2+) ions was titrated with a solution of th...

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  12. How many mL of 0.3M K(2)Cr(2)O(7) (acidic) is required for complete ox...

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  14. A mixture containing As(2)O(3) and As(2)O(5) required 20 mL of 0.05 N ...

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  15. 20ml ofH(2)O(2) after acidification with dilute H2SO(4)required 30mlof...

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  17. By which reason temporary and permanent hardness occur ?

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  18. Define two method by which we can soften the water sample.

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