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  3. Chemical A is used for water softening to remove temporary hardness. A reacts with Na2CO3 to generate caustic soda. When CO2 is bubbled through A, it

. Chemical A is used for water softening to remove temporary hardness. A reacts with Na2CO3 to generate caustic soda. When CO2 is bubbled through A, it

A. CaCO3         B. CaO             C. Ca(OH)2       D. Ca(HCO3)2

Best Answer

(c)

In Clark’s method temporary hardness of water is removed by Ca(OH)2 and after passing CO2 it form milky colour solution.

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