pBlock ElementsII - Result Question 97

####93. Write the balanced chemical equation for the following reactions.

(i) Aqueous solution of sodium nitrate is heated with zinc dust and caustic soda solution.

(ii) Sodium iodate is added to a solution of sodium bisulphite

(1990, 2M)

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Solution:

  1. (i) $NaNO _2+Zn+NaOH \longrightarrow 3 Na _2 ZnO _2+NH _3+H _2 O$

(ii) $2 NaIO _3+5 NaHSO _3 \longrightarrow 3 NaHSO _4+2 Na _2 SO _4$



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