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Lowing method is used for the preparation of

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Lowing method is used for the preparation of
A. `KOH`
B. `NaOH`
C. `Na_(2)CO_(3)`
D. `NaHCO_(3)`
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Correct Answer - B
Lowing method is
`Na_(2)CO_(3)+Fe_(2)CO_(3)overset("Red heat")rarr underset("ferrite")underset("Sodium")(2NaFeO_(2))+CO_(2)`
`2NaFeO_(2)+underset(("Hot"))(H_(2)O)rarr 2NaOH+underset(("Reused"))(Fe_(2)O_(3))`
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