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CGP EDU Academic Team
Published on: August 13, 2026
The flocculation value of HCl for arsenic sulphide sol. is 30 m mol L -1 . If H 2 SO 4 is used for the flocculation of arsenic sulphide, the amount, in grams, of H 2 SO 4 in 250 ml required for the above purpose is (molecular mass of H 2 SO 4 = 98 g/mol)
Text Solution
Verified by ExpertsThe correct answer is:
C
1 litre solution of 30 m mol of HC1 is required
For 1 litre solution 15m mol H 2 SO 4 is required.
250 ml of solution required: 
x 10 -3 (mmol) of H 2 SO 4
= 0.3675 gm
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