Question: 100 ml of 0.1 N hypo decolourised iodine by the addition of x g of crystalline copper sulphate to excess of KI. The value of ‘x’ is (molecular wt. of CuSO₄.5H₂O is 250)
(a) 5.0 g
(b) 1.25 g
(c) 2.5 g
(d) 4 g
Correct Answer: (c) 2.5 g
Question: 100 ml of 0.1 N hypo decolourised iodine by the addition of x g of crystalline copper sulphate to excess of KI. The value of ‘x’ is (molecular wt. of CuSO₄.5H₂O is 250)
(a) 5.0 g
(b) 1.25 g
(c) 2.5 g
(d) 4 g
Correct Answer: (c) 2.5 g
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