Air sample from an industrial town, heavily polluted by `CO_(2)` was collected and analyzed . In one anaylsis , 56L of air measured at 1 atm and 273 K was passed through a 250 mL of 0.025 M NaOH solution , where `CO_(2)(g)` was absorbed completely . 25 mL of the above solution was then treated with excess of `BaCl_(2)` solution where all the carbonate was precipitated as `BaCo_(3)(s)` . The solution was filtered off and the filtrate required 25 mL of a 0.005 MHCl solution for neutralization. Weight (in milligrams ) of precipitate `BaCO_(3)(s)` obtained from the 25 ml of test solution was: [Atomic weight :Ba =137, C=12, O=16]A. 27.58B. 275.8C. 492.5D. 49.25

Air sample from an industrial town, heavily polluted by `CO_(2)` was c

1.	Air sample from an industrial town, heavily polluted by `CO_(2)` was collected and analyzed . In one anaylsis , 56L of air measured at 1 atm and 273 K was passed through a 250 mL of 0.025 M NaOH solution , where `CO_(2)(g)` was absorbed completely . 25 mL of the above solution was then treated with excess of `BaCl_(2)` solution where all the carbonate was precipitated as `BaCo_(3)(s)` . The solution was filtered off and the filtrate required 25 mL of a 0.005 MHCl solution for neutralization. Weight (in milligrams ) of precipitate `BaCO_(3)(s)` obtained from the 25 ml of test solution was: [Atomic weight :Ba =137, C=12, O=16]A. 27.58B. 275.8C. 492.5D. 49.25
Answer» Correct Answer - D

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