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Uses of Slaked Lime

The exhausted...

Question

The exhausted permutit used for removing permanent hardness is regenerated by treating $10 %$ NaCl solution.
If this is true enter 1, if false enter 0.

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Solution

The exhausted permutit used for removing permanent hardness is regenerated by treating $10 %$ $N a C l$ solution (brine solution). It is most efficient method to get water with zero degree of hardness.

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Q. The exhausted permutit is regenerated by treating sodium hydroxide solution in Clark's method for removing permanent hardness.

Q. Permanent hardness of water can be removed by Calgon method.
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N a_{2} C O_{3}

, both temporary and permanent hardness can be removed.
If this is true enter 1, if false enter 0.

Q. Temporary hardness of water can be removed by Clark's method.
If this is true enter 1, if false enter 0.

Q. Permanent hardness of water is due to the presence of the bicarbonates of Ca, Mg and Fe.
If this is true enter 1, if false enter 0.

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Uses of Slaked Lime

Standard XII Chemistry

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