Which of the following gives SO_2 with dilute | vedclass

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Question

(C) When $Na_2SO_3$ (sodium sulfite) reacts with dilute $H_2SO_4$,it undergoes a double displacement reaction to form sodium sulfate,water,and sulfur

Vedclass · Accepted Answer

$Na_2SO_3$

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(C) When $Na_2SO_3$ (sodium sulfite) reacts with dilute $H_2SO_4$,it undergoes a double displacement reaction to form sodium sulfate,water,and sulfur dioxide gas.The chemical equation is: $Na_2SO_3 + H_2SO_4 \rightarrow Na_2SO_4 + H_2O + SO_2 \uparrow$.$Na_2SO_4$ and $NaHSO_4$ do not react with dilute $H_2SO_4$ to produce $SO_2$.$Na_2S$ reacts with dilute $H_2SO_4$ to produce $H_2S$ gas,not $SO_2$.

Which of the following gives $SO_2$ with dilute $H_2SO_4$?

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