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Question

Which reagent is used to remove SO2−4 or Cl− from water?

A
NaOH
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B
Pb(NO3)2
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C
BaSO4
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D
KOH
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Solution

The correct option is B Pb(NO3)2
Option (B) is correct.
Pb(NO3)2 is used to remove SO24 or Cl from water.
PbSO4 and PbCl2 are insoluble in cold water.

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