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1.245 g of CuSO4 . xH2O was dissolved in water and H2S was passed till CuS was completely precipitated. The H2SO4

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1.245 g of CuSO4 . xH2O was dissolved in water and H2S was passed till CuS was completely precipitated. The H2SO4 produced in the filtrate required 10 ml of N NaOH. The value of x is

(a) 7

(b)  5

(c)  8

(d)  6

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Correct option (b) 5

Explanation:

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